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BOSTON MARATHON 2026

Sadie Bronk

Bib: 13739•F

NY

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 41%
Gender (Female)
#0 / 12578
Top 25%
Age Group (F18-39)
#0 / 5716
Top 43%
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
24:21
3.11 mi
Rank: #15725
Start → 5K
24:21 | 7:51/mi
10K
48:45
6.21 mi
Rank: #15867 (-142)
5K → 10K
24:24 | 7:52/mi
15K
1:12:39
9.32 mi
Rank: #15383 (+484)
10K → 15K
23:54 | 7:42/mi
20K
1:36:30
12.43 mi
Rank: #14867
15K → 20K
23:51 | 7:41/mi
HALF
1:41:44
13.11 mi
Rank: #14837
20K → HALF
5:14 | 7:41/mi
25K
2:00:17
15.53 mi
Rank: #14447
HALF → 25K
18:33 | 7:39/mi
30K
2:24:11
18.64 mi
Rank: #13802
25K → 30K
23:54 | 7:42/mi
20M
2:34:34
20.00 mi
Rank: #13507
30K → 20M
10:23 | 7:39/mi
21M
2:42:24
21.00 mi
Rank: #13214
20M → 21M
7:50 | 7:50/mi
35K
2:47:45
21.75 mi
Rank: #13030
21M → 35K
5:21 | 7:10/mi
23M
2:57:04
23.00 mi
Rank: #12731
35K → 23M
9:19 | 7:27/mi
24M
3:04:18
24.00 mi
Rank: #12501
23M → 24M
7:14 | 7:14/mi
40K
3:10:26
24.85 mi
Rank: #12251
24M → 40K
6:08 | 7:11/mi
25.2M
3:13:04
25.20 mi
Rank: #12132
40K → 25.2M
2:38 | 7:39/mi
FINISH
3:19:54
26.22 mi
Rank: #11829
25.2M → FINISH
6:50 | 6:43/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via HALF
Distance13.11 mi
Time1:41:44
Pace7:46 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:38:10
Pace7:30 /mi
📊Negative Split: 3.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:4324:217:5124:21
7:51
-
10K
6.21 mi11:18:0748:457:5124:24
7:52
+0:01
15K
9.32 mi11:42:011:12:397:4823:54
7:42
-0:10
20K
12.43 mi12:05:521:36:307:4623:51
7:41
-0:01
HALF
13.11 mi12:11:061:41:447:465:14
7:41
0:00
25K
15.53 mi12:29:392:00:177:4518:33
7:39
-0:02
30K
18.64 mi12:53:332:24:117:4523:54
7:42
+0:03
20M
20.00 mi13:03:562:34:347:4410:23
7:39
-0:03
21M
21.00 mi13:11:462:42:247:457:50
7:50
+0:11
35K
21.75 mi13:17:072:47:457:435:21
7:10
-0:40
23M
23.00 mi13:26:262:57:047:429:19
7:27
+0:17
24M
24.00 mi13:33:403:04:187:417:14
7:14
-0:13
40K
24.85 mi13:39:483:10:267:406:08
7:11
-0:03
25.2M
25.20 mi13:42:263:13:047:402:38
7:39
+0:28
FINISH
26.22 mi13:49:163:19:547:386:50
6:43
-0:56

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

6:43 /mi

Average Pace

7:38 /mi

Slowest Pace

7:52 /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

25:33

13% of race

Time at Steady Pace

2:54:21

87% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:37 /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 mi10:53:4324:217:5124:21
7:51
#15725
10K
6.21 mi11:18:0748:457:5124:24
7:52
#15867
15K
9.32 mi11:42:011:12:397:4823:54
7:42
#15383
20K
12.43 mi12:05:521:36:307:4623:51
7:41
#14867
HALF
13.11 mi12:11:061:41:447:465:14
7:41
#14837
25K
15.53 mi12:29:392:00:177:4518:33
7:39
#14447
30K
18.64 mi12:53:332:24:117:4523:54
7:42
#13802
20M
20.00 mi13:03:562:34:347:4410:23
7:39
#13507
21M
21.00 mi13:11:462:42:247:457:50
7:50
#13214
35K
21.75 mi13:17:072:47:457:435:21
7:10
#13030
23M
23.00 mi13:26:262:57:047:429:19
7:27
#12731
24M
24.00 mi13:33:403:04:187:417:14
7:14
#12501
40K
24.85 mi13:39:483:10:267:406:08
7:11
#12251
25.2M
25.20 mi13:42:263:13:047:402:38
7:39
#12132
FINISH
26.22 mi13:49:163:19:547:386:50
6:43
#11829
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 mi157255133513314488(Top 50%)4433(Top 35%)4433(Top 78%)
10K6.21 mi3.10 mi15867-1425243-1105243-11016089(Top 55%)5353(Top 43%)5353(Top 94%)
15K9.32 mi3.11 mi15383+4844970+2734970+27314488(Top 50%)4433(Top 35%)4433(Top 78%)
20K12.43 mi3.11 mi14867+5164661+3094661+30913521(Top 47%)3950(Top 31%)3950(Top 69%)
HALF13.11 mi0.68 mi14837+304648+134648+1314551(Top 50%)4438(Top 35%)4438(Top 78%)
25K15.53 mi2.42 mi14447+3904430+2184430+21812632(Top 44%)3507(Top 28%)3507(Top 61%)
30K18.64 mi3.11 mi13802+6454078+3524078+35211185(Top 39%)2867(Top 23%)2867(Top 50%)
20M20.00 mi1.36 mi13507+2953954+1243954+12410219(Top 35%)2518(Top 20%)2518(Top 44%)
21M21.00 mi1.00 mi13214+2933814+1403814+1408797(Top 30%)1959(Top 16%)1959(Top 34%)
35K21.75 mi0.75 mi13030+1843729+853729+858275(Top 29%)1701(Top 14%)1701(Top 30%)
23M23.00 mi1.25 mi12731+2993577+1523577+1528504(Top 29%)1887(Top 15%)1887(Top 33%)
24M24.00 mi1.00 mi12501+2303486+913486+918151(Top 28%)1808(Top 14%)1808(Top 32%)
40K24.85 mi0.85 mi12251+2503366+1203366+1206645(Top 23%)1243(Top 10%)1243(Top 22%)
25.2M25.20 mi0.35 mi12132+1193313+533313+536186(Top 21%)1168(Top 9%)1168(Top 20%)
FINISH26.22 mi1.02 mi11829+3033179+1343179+1345535(Top 19%)962(Top 8%)962(Top 17%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21
+97ft-345ft

Overall

14488

Females

4433

F18-39

4433

5K→10K

3.1 - 6.2 mi

Top 55%
×5
+79ft-138ft

Overall

16089

Females

5353

F18-39

5353

10K→15K

6.2 - 9.3 mi

Top 50%
×3
+67ft-78ft

Overall

14488

Females

4433

F18-39

4433

15K→20K

9.3 - 12.4 mi

Top 47%
×5
+106ft-86ft

Overall

13521

Females

3950

F18-39

3950

20K→HALF

12.4 - 13.1 mi

Top 50%
×2
+19ft-37ft

Overall

14551

Females

4438

F18-39

4438

HALF→25K

13.1 - 15.5 mi

Top 44%
×4
+66ft-88ft

Overall

12632

Females

3507

F18-39

3507

25K→30K

15.5 - 18.6 mi

Top 39%
×9
+181ft-148ft

Overall

11185

Females

2867

F18-39

2867

30K→20M

18.6 - 20.0 mi

Top 35%
×5
+64ft-50ft

Overall

10219

Females

2518

F18-39

2518

20M→21M

20.0 - 21.0 mi

Top 30%
×8
+106ft-24ft

Overall

8797

Females

1959

F18-39

1959

21M→35K

21.0 - 21.8 mi

Top 29%
×7
+17ft-86ft

Overall

8275

Females

1701

F18-39

1701

35K→23M

21.8 - 23.0 mi

Top 29%
×5
+23ft-63ft

Overall

8504

Females

1887

F18-39

1887

23M→24M

23.0 - 24.0 mi

Top 28%
×6
+12ft-82ft

Overall

8151

Females

1808

F18-39

1808

24M→40K

24.0 - 24.9 mi

Top 23%
×1
+6ft-20ft

Overall

6645

Females

1243

F18-39

1243

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1
+13ft-16ft

Overall

6186

Females

1168

F18-39

1168

25.2M→FINISH

25.2 - 26.2 mi

Top 19%
×2
+22ft-21ft

Overall

5535

Females

962

F18-39

962

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Position interactions are being recalculated

Started about 2 hours ago. This usually takes 10-20 minutes. Please check back shortly.

Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing