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BOSTON MARATHON 2026

Breanna Sieracki

Bib: 140 β€’F β€’Age: N/A

MN

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 13%
Gender (Female)
#0 / 12578
Top 2%
Age Group (F18-39)
#0 / 5716
Top 4%
Race Day Weather
51Β°/41Β°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
17:34
3.11 mi
Rank: #405
Start β†’ 5K
17:34 | 5:40/mi
10K
35:05
6.21 mi
Rank: #385 (+20)
5K β†’ 10K
17:31 | 5:39/mi
15K
52:39
9.32 mi
Rank: #381 (+4)
10K β†’ 15K
17:34 | 5:40/mi
20K
1:10:30
12.43 mi
Rank: #391 (-10)
15K β†’ 20K
17:51 | 5:45/mi
HALF
1:14:29
13.11 mi
Rank: #412 (-21)
20K β†’ HALF
3:59 | 5:51/mi
25K
1:29:14
15.53 mi
Rank: #513 (-101)
HALF β†’ 25K
14:45 | 6:05/mi
30K
1:52:06
18.64 mi
Rank: #1131 (-618)
25K β†’ 30K
22:52 | 7:22/mi
20M
2:03:04
20.00 mi
Rank: #1612 (-481)
30K β†’ 20M
10:58 | 8:05/mi
21M
2:11:18
21.00 mi
Rank: #1924 (-312)
20M β†’ 21M
8:14 | 8:14/mi
35K
2:18:10
21.75 mi
Rank: #2457 (-533)
21M β†’ 35K
6:52 | 9:11/mi
23M
2:30:22
23.00 mi
Rank: #3443 (-986)
35K β†’ 23M
12:12 | 9:45/mi
24M
2:37:46
24.00 mi
Rank: #3622 (-179)
23M β†’ 24M
7:24 | 7:24/mi
40K
2:44:03
24.85 mi
Rank: #3728 (-106)
24M β†’ 40K
6:17 | 7:21/mi
25.2M
2:46:45
25.20 mi
Rank: #3760 (-32)
40K β†’ 25.2M
2:42 | 7:50/mi
FINISH
2:53:55
26.22 mi
Rank: #3877 (-117)
25.2M β†’ FINISH
7:10 | 7:02/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:14:29
Pace5:41 /mi
2nd Half
Distance13.11 mi
Time1:39:26
Pace7:36 /mi
πŸ“ŠPositive Split: 33.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:04:3717:345:4017:34
5:40
-
10K
6.21 mi10:22:0835:055:3917:31
5:39
-0:01
15K
9.32 mi10:39:4252:395:3917:34
5:40
+0:01
20K
12.43 mi10:57:331:10:305:4117:51
5:45
+0:05
HALF
13.11 mi11:01:321:14:295:413:59
5:51
+0:06
25K
15.53 mi11:16:171:29:145:4514:45
6:05
+0:14
30K
18.64 mi11:39:091:52:066:0122:52
7:22
+1:17
20M
20.00 mi11:50:072:03:046:1010:58
8:05
+0:43
21M
21.00 mi11:58:212:11:186:168:14
8:14
+0:09
35K
21.75 mi12:05:132:18:106:226:52
9:11
+0:57
23M
23.00 mi12:17:252:30:226:3312:12
9:45
+0:34
24M
24.00 mi12:24:492:37:466:357:24
7:24
-2:21
40K
24.85 mi12:31:062:44:036:376:17
7:21
-0:03
25.2M
25.20 mi12:33:482:46:456:382:42
7:50
+0:29
FINISH
26.22 mi12:40:582:53:556:397:10
7:02
-0:48

Checkpoint Splits Visualizations

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

πŸ“ˆPace 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

5:39 /mi

Average Pace

6:38 /mi

Slowest Pace

9:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

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

1:29:14

51% of race

Time at Steady Pace

46:25

27% of race

Time at Slower Pace

38:16

22% of race

Average Pace: 6:38 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ 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 mi10:04:3717:345:4017:34
5:40
#405
10K
6.21 mi10:22:0835:055:3917:31
5:39
#385
15K
9.32 mi10:39:4252:395:3917:34
5:40
#381
20K
12.43 mi10:57:331:10:305:4117:51
5:45
#391
HALF
13.11 mi11:01:321:14:295:413:59
5:51
#412
25K
15.53 mi11:16:171:29:145:4514:45
6:05
#513
30K
18.64 mi11:39:091:52:066:0122:52
7:22
#1131
20M
20.00 mi11:50:072:03:046:1010:58
8:05
#1612
21M
21.00 mi11:58:212:11:186:168:14
8:14
#1924
35K
21.75 mi12:05:132:18:106:226:52
9:11
#2457
23M
23.00 mi12:17:252:30:226:3312:12
9:45
#3443
24M
24.00 mi12:24:492:37:466:357:24
7:24
#3622
40K
24.85 mi12:31:062:44:036:376:17
7:21
#3728
25.2M
25.20 mi12:33:482:46:456:382:42
7:50
#3760
FINISH
26.22 mi12:40:582:53:556:397:10
7:02
#3877
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 mi4052424376(Top 1%)24(Top 0.2%)24(Top 0.4%)
10K6.21 mi3.10 mi385+202424381(Top 1%)24(Top 0.2%)24(Top 0.4%)
15K9.32 mi3.11 mi381+42424376(Top 1%)24(Top 0.2%)24(Top 0.4%)
20K12.43 mi3.11 mi391-1025-125-1476(Top 2%)22(Top 0.2%)22(Top 0.4%)
HALF13.11 mi0.68 mi412-212525876(Top 3%)35(Top 0.3%)35(Top 0.6%)
25K15.53 mi2.42 mi513-10125251401(Top 5%)51(Top 0.4%)51(Top 0.9%)
30K18.64 mi3.11 mi1131-61843-1843-188581(Top 30%)1619(Top 13%)1619(Top 28%)
20M20.00 mi1.36 mi1612-48158-1558-1513305(Top 46%)4101(Top 33%)4101(Top 72%)
21M21.00 mi1.00 mi1924-31267-967-911407(Top 39%)3187(Top 25%)3187(Top 56%)
35K21.75 mi0.75 mi2457-53393-2693-2620724(Top 71%)8296(Top 66%)8296(Top 145%)
23M23.00 mi1.25 mi3443-986164-71164-7121400(Top 74%)8679(Top 69%)8679(Top 152%)
24M24.00 mi1.00 mi3622-179189-25189-259359(Top 32%)2332(Top 19%)2332(Top 41%)
40K24.85 mi0.85 mi3728-106220-31220-317809(Top 27%)1700(Top 14%)1700(Top 30%)
25.2M25.20 mi0.35 mi3760-32230-10230-107291(Top 25%)1529(Top 12%)1529(Top 27%)
FINISH26.22 mi1.02 mi3877-117248-18248-187838(Top 27%)1829(Top 15%)1829(Top 32%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 1%
Γ—21
+97ft-345ft

Overall

376

Females

24

F18-39

24

5K→10K

3.1 - 6.2 mi

Top 1%
Γ—5
+79ft-138ft

Overall

381

Females

24

F18-39

24

10K→15K

6.2 - 9.3 mi

Top 1%
Γ—3
+67ft-78ft

Overall

376

Females

24

F18-39

24

15K→20K

9.3 - 12.4 mi

Top 2%
Γ—5
+106ft-86ft

Overall

476

Females

22

F18-39

22

20K→HALF

12.4 - 13.1 mi

Top 3%
Γ—2
+19ft-37ft

Overall

876

Females

35

F18-39

35

HALF→25K

13.1 - 15.5 mi

Top 5%
Γ—4
+66ft-88ft

Overall

1401

Females

51

F18-39

51

25K→30K

15.5 - 18.6 mi

Top 30%
Γ—9
+181ft-148ft

Overall

8581

Females

1619

F18-39

1619

30K→20M

18.6 - 20.0 mi

Top 46%
Γ—5
+64ft-50ft

Overall

13305

Females

4101

F18-39

4101

20M→21M

20.0 - 21.0 mi

Top 39%
Γ—8
+106ft-24ft

Overall

11407

Females

3187

F18-39

3187

21M→35K

21.0 - 21.8 mi

Top 71%
Γ—7
+17ft-86ft

Overall

20724

Females

8296

F18-39

8296

35K→23M

21.8 - 23.0 mi

Top 74%
Γ—5
+23ft-63ft

Overall

21400

Females

8679

F18-39

8679

23M→24M

23.0 - 24.0 mi

Top 32%
Γ—6
+12ft-82ft

Overall

9359

Females

2332

F18-39

2332

24M→40K

24.0 - 24.9 mi

Top 27%
Γ—1
+6ft-20ft

Overall

7809

Females

1700

F18-39

1700

40K→25.2M

24.9 - 25.2 mi

Top 25%
Γ—1
+13ft-16ft

Overall

7291

Females

1529

F18-39

1529

25.2M→FINISH

25.2 - 26.2 mi

Top 27%
Γ—2
+22ft-21ft

Overall

7838

Females

1829

F18-39

1829

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
138
Passed By
1675
Net Change
-3472
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#405
5K β†’ 10K3616+20#405#385
10K β†’ 15K1511+4#385#381
15K β†’ 20K1222-10#381#391
20K β†’ HALF122-21#391#412
HALF β†’ 25K3104-101#412#513
25K β†’ 30K1200-618#513#1131
30K β†’ 20M0200-481#1131#1612
20M β†’ 21M2200-312#1612#1924
21M β†’ 35K0200-533#1924#2457
35K β†’ 23M2200-986#2457#3443
23M β†’ 24M17196-179#3443#3622
24M β†’ 40K18124-106#3622#3728
40K β†’ 25.2M840-32#3728#3760
25.2M β†’ FINISH23140-117#3760#3877
TOTALS1381675-3472
πŸ“Š

Passing Analysis Visualizations

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

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

Activity Data

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Export & Support

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Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing