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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Sierra Swanson

Bib: 14434 •F •Age: N/A

WY

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Top 44%
Gender (Female)
#0 / 12578
Top 29%
Age Group (F18-39)
#0 / 5716
Top 49%
Race Day Weather
51°/41°F
overcast clouds
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  • Qualification readiness
  • Segment-by-segment breakdown
  • Personalized race insights
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Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
21:59
3.11 mi
Rank: #9186
Start → 5K
21:59 | 7:05/mi
10K
43:07
6.21 mi
Rank: #8133 (+1053)
5K → 10K
21:08 | 6:49/mi
15K
1:04:50
9.32 mi
Rank: #8260 (-127)
10K → 15K
21:43 | 7:00/mi
20K
1:29:25
12.43 mi
Rank: #9854 (-1594)
15K → 20K
24:35 | 7:55/mi
HALF
1:34:25
13.11 mi
Rank: #9931 (-77)
20K → HALF
5:00 | 7:21/mi
25K
1:54:23
15.53 mi
Rank: #11217 (-1286)
HALF → 25K
19:58 | 8:14/mi
30K
2:19:28
18.64 mi
Rank: #11738 (-521)
25K → 30K
25:05 | 8:05/mi
20M
2:30:50
20.00 mi
Rank: #12006 (-268)
30K → 20M
11:22 | 8:23/mi
21M
2:39:36
21.00 mi
Rank: #12164 (-158)
20M → 21M
8:46 | 8:46/mi
35K
2:45:42
21.75 mi
Rank: #12281 (-117)
21M → 35K
6:06 | 8:10/mi
23M
2:56:26
23.00 mi
Rank: #12516 (-235)
35K → 23M
10:44 | 8:35/mi
24M
3:04:43
24.00 mi
Rank: #12650 (-134)
23M → 24M
8:17 | 8:17/mi
40K
3:11:55
24.85 mi
Rank: #12722 (-72)
24M → 40K
7:12 | 8:26/mi
25.2M
3:15:03
25.20 mi
Rank: #12756 (-34)
40K → 25.2M
3:08 | 9:06/mi
FINISH
3:23:08
26.22 mi
Rank: #12801 (-45)
25.2M → FINISH
8:05 | 7:56/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:34:25
Pace7:13 /mi
2nd Half
Distance13.11 mi
Time1:48:43
Pace8:18 /mi
📊Positive Split: 15.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:4121:597:0521:59
7:05
-
10K
6.21 mi11:12:4943:076:5721:08
6:49
-0:16
15K
9.32 mi11:34:321:04:506:5821:43
7:00
+0:11
20K
12.43 mi11:59:071:29:257:1224:35
7:55
+0:55
HALF
13.11 mi12:04:071:34:257:135:00
7:21
-0:34
25K
15.53 mi12:24:051:54:237:2219:58
8:14
+0:53
30K
18.64 mi12:49:102:19:287:2925:05
8:05
-0:09
20M
20.00 mi13:00:322:30:507:3311:22
8:23
+0:18
21M
21.00 mi13:09:182:39:367:378:46
8:46
+0:23
35K
21.75 mi13:15:242:45:427:386:06
8:10
-0:36
23M
23.00 mi13:26:082:56:267:4110:44
8:35
+0:25
24M
24.00 mi13:34:253:04:437:428:17
8:17
-0:18
40K
24.85 mi13:41:373:11:557:447:12
8:26
+0:09
25.2M
25.20 mi13:44:453:15:037:453:08
9:06
+0:40
FINISH
26.22 mi13:52:503:23:087:468:05
7:56
-1:10

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:49 /mi

Average Pace

7:45 /mi

Slowest Pace

9:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:09:50

34% of race

Time at Steady Pace

1:50:40

54% of race

Time at Slower Pace

22:38

11% of race

Average Pace: 7:45 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:51:4121:597:0521:59
7:05
#9186
10K
6.21 mi11:12:4943:076:5721:08
6:49
#8133
15K
9.32 mi11:34:321:04:506:5821:43
7:00
#8260
20K
12.43 mi11:59:071:29:257:1224:35
7:55
#9854
HALF
13.11 mi12:04:071:34:257:135:00
7:21
#9931
25K
15.53 mi12:24:051:54:237:2219:58
8:14
#11217
30K
18.64 mi12:49:102:19:287:2925:05
8:05
#11738
20M
20.00 mi13:00:322:30:507:3311:22
8:23
#12006
21M
21.00 mi13:09:182:39:367:378:46
8:46
#12164
35K
21.75 mi13:15:242:45:427:386:06
8:10
#12281
23M
23.00 mi13:26:082:56:267:4110:44
8:35
#12516
24M
24.00 mi13:34:253:04:437:428:17
8:17
#12650
40K
24.85 mi13:41:373:11:557:447:12
8:26
#12722
25.2M
25.20 mi13:44:453:15:037:453:08
9:06
#12756
FINISH
26.22 mi13:52:503:23:087:468:05
7:56
#12801
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9186149214928528(Top 29%)1310(Top 10%)1310(Top 23%)
10K6.21 mi3.10 mi8133+10531130+3621130+3627037(Top 24%)809(Top 6%)809(Top 14%)
15K9.32 mi3.11 mi8260-1271198-681198-688528(Top 29%)1310(Top 10%)1310(Top 23%)
20K12.43 mi3.11 mi9854-15941866-6681866-66815440(Top 53%)5047(Top 40%)5047(Top 88%)
HALF13.11 mi0.68 mi9931-771914-481914-4811594(Top 40%)2819(Top 22%)2819(Top 49%)
25K15.53 mi2.42 mi11217-12862601-6872601-68717009(Top 59%)5982(Top 48%)5982(Top 105%)
30K18.64 mi3.11 mi11738-5212931-3302931-33014037(Top 48%)4419(Top 35%)4419(Top 77%)
20M20.00 mi1.36 mi12006-2683112-1813112-18115344(Top 53%)5263(Top 42%)5263(Top 92%)
21M21.00 mi1.00 mi12164-1583215-1033215-10314776(Top 51%)5008(Top 40%)5008(Top 88%)
35K21.75 mi0.75 mi12281-1173297-823297-8215501(Top 53%)5459(Top 43%)5459(Top 96%)
23M23.00 mi1.25 mi12516-2353469-1723469-17216172(Top 56%)5937(Top 47%)5937(Top 104%)
24M24.00 mi1.00 mi12650-1343556-873556-8715585(Top 54%)5654(Top 45%)5654(Top 99%)
40K24.85 mi0.85 mi12722-723623-673623-6715199(Top 52%)5532(Top 44%)5532(Top 97%)
25.2M25.20 mi0.35 mi12756-343654-313654-3115230(Top 52%)5551(Top 44%)5551(Top 97%)
FINISH26.22 mi1.02 mi12801-453710-563710-5614731(Top 51%)5284(Top 42%)5284(Top 92%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21
+97ft-345ft

Overall

8528

Females

1310

F18-39

1310

5K→10K

3.1 - 6.2 mi

Top 24%
×5
+79ft-138ft

Overall

7037

Females

809

F18-39

809

10K→15K

6.2 - 9.3 mi

Top 29%
×3
+67ft-78ft

Overall

8528

Females

1310

F18-39

1310

15K→20K

9.3 - 12.4 mi

Top 53%
×5
+106ft-86ft

Overall

15440

Females

5047

F18-39

5047

20K→HALF

12.4 - 13.1 mi

Top 40%
×2
+19ft-37ft

Overall

11594

Females

2819

F18-39

2819

HALF→25K

13.1 - 15.5 mi

Top 59%
×4
+66ft-88ft

Overall

17009

Females

5982

F18-39

5982

25K→30K

15.5 - 18.6 mi

Top 48%
×9
+181ft-148ft

Overall

14037

Females

4419

F18-39

4419

30K→20M

18.6 - 20.0 mi

Top 53%
×5
+64ft-50ft

Overall

15344

Females

5263

F18-39

5263

20M→21M

20.0 - 21.0 mi

Top 51%
×8
+106ft-24ft

Overall

14776

Females

5008

F18-39

5008

21M→35K

21.0 - 21.8 mi

Top 53%
×7
+17ft-86ft

Overall

15501

Females

5459

F18-39

5459

35K→23M

21.8 - 23.0 mi

Top 56%
×5
+23ft-63ft

Overall

16172

Females

5937

F18-39

5937

23M→24M

23.0 - 24.0 mi

Top 54%
×6
+12ft-82ft

Overall

15585

Females

5654

F18-39

5654

24M→40K

24.0 - 24.9 mi

Top 52%
×1
+6ft-20ft

Overall

15199

Females

5532

F18-39

5532

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1
+13ft-16ft

Overall

15230

Females

5551

F18-39

5551

25.2M→FINISH

25.2 - 26.2 mi

Top 51%
×2
+22ft-21ft

Overall

14731

Females

5284

F18-39

5284

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1586*
Passed By
2104
Net Change
-3615
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9186
5K → 10K1063*10+1053#9186#8133
10K → 15K80200-127#8133#8260
15K → 20K11200-1594#8260#9854
20K → HALF1390-77#9854#9931
HALF → 25K10200-1286#9931#11217
25K → 30K75200-521#11217#11738
30K → 20M37200-268#11738#12006
20M → 21M55200-158#12006#12164
21M → 35K26143-117#12164#12281
35K → 23M40200-235#12281#12516
23M → 24M41175-134#12516#12650
24M → 40K49121-72#12650#12722
40K → 25.2M2054-34#12722#12756
25.2M → FINISH66111-45#12756#12801
TOTALS1586*2104-3615

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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