Boston Marathon logo
BOSTON MARATHON 2025

Michelle Wronski

Bib: 27545•F

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:37/mi
29:53
↑ 97↓ 3451.5%
10K· 6.21 mi
9:05/mi
58:06
↑ 79↓ 1380.4%
15K· 9.32 mi
8:54/mi
1:25:46
↑ 67↓ 78
20K· 12.43 mi
8:57/mi
1:53:35
↑ 106↓ 860.1%
Half· 13.11 mi
8:42/mi
1:59:31
↑ 19↓ 370.5%
25K· 15.53 mi
8:55/mi
2:21:07
↑ 66↓ 880.2%
30K· 18.64 mi
9:19/mi
2:50:04
↑ 181↓ 1480.2%
20M
9:11/mi
3:02:33
↑ 64↓ 500.2%
21M
9:27/mi
3:12:00
↑ 106↓ 241.6%
35K· 21.75 mi
8:52/mi
3:18:38
↑ 17↓ 861.7%
23M
8:31/mi
3:29:18
↑ 23↓ 630.6%
24M
8:19/mi
3:37:37
↓ 821.3%
40K· 24.85 mi
8:14/mi
3:44:39
↓ 200.3%
25.2M
8:48/mi
3:47:41
↑ 13↓ 160.2%
Finish· 26.22 mi
7:45/mi
3:55:35
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via Half
Distance13.11 mi
Time1:59:31
Pace9:07 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:56:04
Pace8:51 /mi
📊Negative Split: 2.9% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:2929:539:3729:53
9:37
-
10K
6.21 mi12:17:4258:069:2128:13
9:05
-0:32
15K
9.32 mi12:45:221:25:469:1227:40
8:54
-0:11
20K
12.43 mi13:13:111:53:359:0827:49
8:57
+0:03
Half
13.11 mi13:19:071:59:319:075:56
8:42
-0:15
25K
15.53 mi13:40:432:21:079:0521:36
8:55
+0:13
30K
18.64 mi14:09:402:50:049:0728:57
9:19
+0:24
20M
20.00 mi14:22:093:02:339:0812:29
9:11
-0:08
21M
21.00 mi14:31:363:12:009:099:27
9:27
+0:16
35K
21.75 mi14:38:143:18:389:086:38
8:52
-0:35
23M
23.00 mi14:48:543:29:189:0610:40
8:31
-0:21
24M
24.00 mi14:57:133:37:379:048:19
8:19
-0:12
40K
24.85 mi15:04:153:44:399:027:02
8:14
-0:05
25.2M
25.20 mi15:07:173:47:419:023:02
8:48
+0:34
Finish
26.22 mi15:15:113:55:359:007:54
7:45
-1:03

Checkpoints & Pacing

📈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

7:45 /mi

Average Pace

9:00 /mi

Slowest Pace

9:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

33:55

14% of race

Time at Steady Pace

2:00:54

51% of race

Time at Slower Pace

1:20:46

34% of race

Average Pace: 8:59 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:49:2929:539:3729:53
9:37
#24603
10K
6.21 mi12:17:4258:069:2128:13
9:05
#23728
15K
9.32 mi12:45:221:25:469:1227:40
8:54
#23121
20K
12.43 mi13:13:111:53:359:0827:49
8:57
#22521
Half
13.11 mi13:19:071:59:319:075:56
8:42
#22417
25K
15.53 mi13:40:432:21:079:0521:36
8:55
#21948
30K
18.64 mi14:09:402:50:049:0728:57
9:19
#21421
20M
20.00 mi14:22:093:02:339:0812:29
9:11
#21153
21M
21.00 mi14:31:363:12:009:099:27
9:27
#20841
35K
21.75 mi14:38:143:18:389:086:38
8:52
#20724
23M
23.00 mi14:48:543:29:189:0610:40
8:31
#20383
24M
24.00 mi14:57:133:37:379:048:19
8:19
#20132
40K
24.85 mi15:04:153:44:399:027:02
8:14
#19859
25.2M
25.20 mi15:07:173:47:419:023:02
8:48
#19744
Finish
26.22 mi15:15:113:55:359:007:54
7:45
#19465
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi24603100071000721600(Top 76%)8329(Top 68%)8329(Top 152%)
10K6.21 mi3.10 mi23728+8759540+4679540+46722749(Top 80%)8995(Top 74%)8995(Top 164%)
15K9.32 mi3.11 mi23121+6079195+3459195+34521600(Top 76%)8329(Top 68%)8329(Top 152%)
20K12.43 mi3.11 mi22521+6008875+3208875+32020739(Top 73%)7912(Top 65%)7912(Top 145%)
Half13.11 mi0.68 mi22417+1048827+488827+4820383(Top 72%)7684(Top 63%)7684(Top 141%)
25K15.53 mi2.42 mi21948+4698574+2538574+25319483(Top 69%)7249(Top 59%)7249(Top 133%)
30K18.64 mi3.11 mi21421+5278316+2588316+25819199(Top 68%)7227(Top 59%)7227(Top 132%)
20M20.00 mi1.36 mi21153+2688191+1258191+12517758(Top 63%)6570(Top 54%)6570(Top 120%)
21M21.00 mi1.00 mi20841+3128034+1578034+15715892(Top 56%)5661(Top 46%)5661(Top 104%)
35K21.75 mi0.75 mi20724+1177983+517983+5117642(Top 62%)6717(Top 55%)6717(Top 123%)
23M23.00 mi1.25 mi20383+3417827+1567827+15613472(Top 47%)4524(Top 37%)4524(Top 83%)
24M24.00 mi1.00 mi20132+2517710+1177710+11713424(Top 47%)4545(Top 37%)4545(Top 83%)
40K24.85 mi0.85 mi19859+2737588+1227588+12211780(Top 41%)3815(Top 31%)3815(Top 70%)
25.2M25.20 mi0.35 mi19744+1157523+657523+6510752(Top 38%)3408(Top 28%)3408(Top 62%)
Finish26.22 mi1.02 mi19465+2797390+1337390+13311152(Top 39%)3550(Top 29%)3550(Top 65%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

21600

Females

8329

F18-39

8329

5K→10K

3.1 - 6.2 mi

Top 80%
×5story building
+79ft-138ft

Overall

22749

Females

8995

F18-39

8995

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

21600

Females

8329

F18-39

8329

15K→20K

9.3 - 12.4 mi

Top 73%
×5story building
+106ft-86ft

Overall

20739

Females

7912

F18-39

7912

20K→Half

12.4 - 13.1 mi

Top 72%
×2story building
+19ft-37ft

Overall

20383

Females

7684

F18-39

7684

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

19483

Females

7249

F18-39

7249

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

19199

Females

7227

F18-39

7227

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

17758

Females

6570

F18-39

6570

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

15892

Females

5661

F18-39

5661

21M→35K

21.0 - 21.8 mi

Top 62%
×7story building
+17ft-86ft

Overall

17642

Females

6717

F18-39

6717

35K→23M

21.8 - 23.0 mi

Top 47%
×5story building
+23ft-63ft

Overall

13472

Females

4524

F18-39

4524

23M→24M

23.0 - 24.0 mi

Top 47%
×6story building
+12ft-82ft

Overall

13424

Females

4545

F18-39

4545

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

11780

Females

3815

F18-39

3815

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10752

Females

3408

F18-39

3408

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2story building
+22ft-21ft

Overall

11152

Females

3550

F18-39

3550

Passing Analysis

Category:
Athletes Passed
5197
Passed By
59
Net Change
+5138
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24603
5K → 10K89217+875#24603#23728
10K → 15K62013+607#23728#23121
15K → 20K6055+600#23121#22521
20K → Half1062+104#22521#22417
Half → 25K4745+469#22417#21948
25K → 30K54013+527#21948#21421
30K → 20M2691+268#21421#21153
20M → 21M3120+312#21153#20841
21M → 35K1203+117#20841#20724
35K → 23M3410+341#20724#20383
23M → 24M2510+251#20383#20132
24M → 40K2730+273#20132#19859
40K → 25.2M1150+115#19859#19744
25.2M → Finish2790+279#19744#19465
TOTALS519759+5138
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

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

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing