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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Chelsea Clinton

Bib: 11523 •F •Age: N/A

NY

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Top 40%
Age Group (F45-49)
#0 / 1786
Race Day Weather
51°/41°F
overcast clouds

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
26:01
3.11 mi
Rank: #19366
Start → 5K
26:01 | 8:23/mi
10K
52:09
6.21 mi
Rank: #19590 (-224)
5K → 10K
26:08 | 8:25/mi
15K
1:17:59
9.32 mi
Rank: #19390 (+200)
10K → 15K
25:50 | 8:19/mi
20K
1:44:01
12.43 mi
Rank: #19199 (+191)
15K → 20K
26:02 | 8:23/mi
HALF
1:49:42
13.11 mi
Rank: #19192 (+7)
20K → HALF
5:41 | 8:21/mi
25K
2:09:59
15.53 mi
Rank: #18957 (+235)
HALF → 25K
20:17 | 8:22/mi
30K
2:36:21
18.64 mi
Rank: #18538 (+419)
25K → 30K
26:22 | 8:30/mi
20M
2:47:51
20.00 mi
Rank: #18352 (+186)
30K → 20M
11:30 | 8:28/mi
21M
2:56:24
21.00 mi
Rank: #18076 (+276)
20M → 21M
8:33 | 8:33/mi
35K
3:02:39
21.75 mi
Rank: #18021 (+55)
21M → 35K
6:15 | 8:22/mi
23M
3:13:23
23.00 mi
Rank: #17878 (+143)
35K → 23M
10:44 | 8:35/mi
24M
3:22:30
24.00 mi
Rank: #17992 (-114)
23M → 24M
9:07 | 9:07/mi
40K
3:29:40
24.85 mi
Rank: #17867 (+125)
24M → 40K
7:10 | 8:23/mi
25.2M
3:32:48
25.20 mi
Rank: #17814 (+53)
40K → 25.2M
3:08 | 9:06/mi
FINISH
3:40:52
26.22 mi
Rank: #17670 (+144)
25.2M → FINISH
8:04 | 7:55/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:49:42
Pace8:23 /mi
2nd Half
Distance13.11 mi
Time1:51:10
Pace8:29 /mi
📊Positive Split: 1.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:33:2426:018:2326:01
8:23
-
10K
6.21 mi10:59:3252:098:2426:08
8:25
+0:02
15K
9.32 mi11:25:221:17:598:2325:50
8:19
-0:06
20K
12.43 mi11:51:241:44:018:2326:02
8:23
+0:04
HALF
13.11 mi11:57:051:49:428:235:41
8:21
-0:02
25K
15.53 mi12:17:222:09:598:2320:17
8:22
+0:01
30K
18.64 mi12:43:442:36:218:2426:22
8:30
+0:08
20M
20.00 mi12:55:142:47:518:2411:30
8:28
-0:02
21M
21.00 mi13:03:472:56:248:258:33
8:33
+0:05
35K
21.75 mi13:10:023:02:398:246:15
8:22
-0:11
23M
23.00 mi13:20:463:13:238:2510:44
8:35
+0:13
24M
24.00 mi13:29:533:22:308:279:07
9:07
+0:32
40K
24.85 mi13:37:033:29:408:277:10
8:23
-0:44
25.2M
25.20 mi13:40:113:32:488:273:08
9:06
+0:43
FINISH
26.22 mi13:48:153:40:528:268:04
7:55
-1:11

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

7:55 /mi

Average Pace

8:26 /mi

Slowest Pace

9:07 /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

3:28:37

94% of race

Time at Steady Pace

12:15

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:25 /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 mi10:33:2426:018:2326:01
8:23
#19366
10K
6.21 mi10:59:3252:098:2426:08
8:25
#19590
15K
9.32 mi11:25:221:17:598:2325:50
8:19
#19390
20K
12.43 mi11:51:241:44:018:2326:02
8:23
#19199
HALF
13.11 mi11:57:051:49:428:235:41
8:21
#19192
25K
15.53 mi12:17:222:09:598:2320:17
8:22
#18957
30K
18.64 mi12:43:442:36:218:2426:22
8:30
#18538
20M
20.00 mi12:55:142:47:518:2411:30
8:28
#18352
21M
21.00 mi13:03:472:56:248:258:33
8:33
#18076
35K
21.75 mi13:10:023:02:398:246:15
8:22
#18021
23M
23.00 mi13:20:463:13:238:2510:44
8:35
#17878
24M
24.00 mi13:29:533:22:308:279:07
9:07
#17992
40K
24.85 mi13:37:033:29:408:277:10
8:23
#17867
25.2M
25.20 mi13:40:113:32:488:273:08
9:06
#17814
FINISH
26.22 mi13:48:153:40:528:268:04
7:55
#17670
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi193667286728619073(Top 66%)7076(Top 56%)7076(Top 396%)
10K6.21 mi3.10 mi19590-2247399-1137399-11319853(Top 68%)7510(Top 60%)7510(Top 420%)
15K9.32 mi3.11 mi19390+2007269+1307269+13019073(Top 66%)7076(Top 56%)7076(Top 396%)
20K12.43 mi3.11 mi19199+1917170+997170+9918593(Top 64%)6849(Top 54%)6849(Top 383%)
HALF13.11 mi0.68 mi19192+77165+57165+519274(Top 66%)7178(Top 57%)7178(Top 402%)
25K15.53 mi2.42 mi18957+2357050+1157050+11517785(Top 61%)6440(Top 51%)6440(Top 361%)
30K18.64 mi3.11 mi18538+4196853+1976853+19716861(Top 58%)6032(Top 48%)6032(Top 338%)
20M20.00 mi1.36 mi18352+1866758+956758+9516044(Top 55%)5675(Top 45%)5675(Top 318%)
21M21.00 mi1.00 mi18076+2766629+1296629+12913511(Top 47%)4339(Top 34%)4339(Top 243%)
35K21.75 mi0.75 mi18021+556606+236606+2316806(Top 58%)6217(Top 49%)6217(Top 348%)
23M23.00 mi1.25 mi17878+1436553+536553+5316195(Top 56%)5960(Top 47%)5960(Top 334%)
24M24.00 mi1.00 mi17992-1146637-846637-8419949(Top 69%)8026(Top 64%)8026(Top 449%)
40K24.85 mi0.85 mi17867+1256579+586579+5815003(Top 52%)5444(Top 43%)5444(Top 305%)
25.2M25.20 mi0.35 mi17814+536558+216558+2115292(Top 53%)5613(Top 45%)5613(Top 314%)
FINISH26.22 mi1.02 mi17670+1446493+656493+6514651(Top 50%)5259(Top 42%)5259(Top 294%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21
+97ft-345ft

Overall

19073

Females

7076

F45-49

7076

5K→10K

3.1 - 6.2 mi

Top 68%
×5
+79ft-138ft

Overall

19853

Females

7510

F45-49

7510

10K→15K

6.2 - 9.3 mi

Top 66%
×3
+67ft-78ft

Overall

19073

Females

7076

F45-49

7076

15K→20K

9.3 - 12.4 mi

Top 64%
×5
+106ft-86ft

Overall

18593

Females

6849

F45-49

6849

20K→HALF

12.4 - 13.1 mi

Top 66%
×2
+19ft-37ft

Overall

19274

Females

7178

F45-49

7178

HALF→25K

13.1 - 15.5 mi

Top 61%
×4
+66ft-88ft

Overall

17785

Females

6440

F45-49

6440

25K→30K

15.5 - 18.6 mi

Top 58%
×9
+181ft-148ft

Overall

16861

Females

6032

F45-49

6032

30K→20M

18.6 - 20.0 mi

Top 55%
×5
+64ft-50ft

Overall

16044

Females

5675

F45-49

5675

20M→21M

20.0 - 21.0 mi

Top 47%
×8
+106ft-24ft

Overall

13511

Females

4339

F45-49

4339

21M→35K

21.0 - 21.8 mi

Top 58%
×7
+17ft-86ft

Overall

16806

Females

6217

F45-49

6217

35K→23M

21.8 - 23.0 mi

Top 56%
×5
+23ft-63ft

Overall

16195

Females

5960

F45-49

5960

23M→24M

23.0 - 24.0 mi

Top 69%
×6
+12ft-82ft

Overall

19949

Females

8026

F45-49

8026

24M→40K

24.0 - 24.9 mi

Top 52%
×1
+6ft-20ft

Overall

15003

Females

5444

F45-49

5444

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1
+13ft-16ft

Overall

15292

Females

5613

F45-49

5613

25.2M→FINISH

25.2 - 26.2 mi

Top 50%
×2
+22ft-21ft

Overall

14651

Females

5259

F45-49

5259

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2562*
Passed By
670
Net Change
+1696
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19366
5K → 10K172200-224#19366#19590
10K → 15K298*98+200#19590#19390
15K → 20K254*63+191#19390#19199
20K → HALF3427+7#19199#19192
HALF → 25K258*23+235#19192#18957
25K → 30K438*19+419#18957#18538
30K → 20M19711+186#18538#18352
20M → 21M278*2+276#18352#18076
21M → 35K7116+55#18076#18021
35K → 23M17229+143#18021#17878
23M → 24M35149-114#17878#17992
24M → 40K1338+125#17992#17867
40K → 25.2M6411+53#17867#17814
25.2M → FINISH15814+144#17814#17670
TOTALS2562*670+1696

* 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

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