Boston Marathon logo
BOSTON MARATHON 2025

Amy Chruniak

Bib: 32271•F

MA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:36
Rank: #21924
Start → 5K
27:36 | 8:53/mi
10K· 6.21 mi
54:39
Rank: #21428 (+496)
5K → 10K
27:03 | 8:42/mi
15K· 9.32 mi
1:21:12
Rank: #20815 (+613)
10K → 15K
26:33 | 8:33/mi
20K· 12.43 mi
1:47:55
Rank: #20318 (+497)
15K → 20K
26:43 | 8:36/mi
Half· 13.11 mi
1:53:43
Rank: #20270 (+48)
20K → Half
5:48 | 8:30/mi
25K· 15.53 mi
2:14:31
Rank: #19833 (+437)
Half → 25K
20:48 | 8:35/mi
30K· 18.64 mi
2:44:09
Rank: #19898 (-65)
25K → 30K
29:38 | 9:32/mi
20M
2:57:36
Rank: #19993 (-95)
30K → 20M
13:27 | 9:54/mi
21M
3:09:00
Rank: #20205 (-212)
20M → 21M
11:24 | 11:24/mi
35K· 21.75 mi
3:15:44
Rank: #20127 (+78)
21M → 35K
6:44 | 9:00/mi
23M
3:28:15
Rank: #20160 (-33)
35K → 23M
12:31 | 10:00/mi
24M
3:37:47
Rank: #20171 (-11)
23M → 24M
9:32 | 9:32/mi
40K· 24.85 mi
3:47:01
Rank: #20331 (-160)
24M → 40K
9:14 | 10:48/mi
25.2M
3:50:58
Rank: #20389 (-58)
40K → 25.2M
3:57 | 11:27/mi
Finish· 26.22 mi
4:01:54
Rank: #20625 (-236)
25.2M → Finish
10:56 | 10:44/mi

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 HalfFaster
Distance13.11 mi
Time1:53:43
Pace8:40 /mi
2nd Half
Distance13.11 mi
Time2:08:11
Pace9:47 /mi
📊Positive Split: 12.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:1727:368:5327:36
8:53
-
10K
6.21 mi12:19:2054:398:4827:03
8:42
-0:11
15K
9.32 mi12:45:531:21:128:4326:33
8:33
-0:09
20K
12.43 mi13:12:361:47:558:4126:43
8:36
+0:03
Half
13.11 mi13:18:241:53:438:405:48
8:30
-0:06
25K
15.53 mi13:39:122:14:318:4020:48
8:35
+0:05
30K
18.64 mi14:08:502:44:098:4829:38
9:32
+0:57
20M
20.00 mi14:22:172:57:368:5313:27
9:54
+0:22
21M
21.00 mi14:33:413:09:009:0011:24
11:24
+1:30
35K
21.75 mi14:40:253:15:449:006:44
9:00
-2:24
23M
23.00 mi14:52:563:28:159:0312:31
10:00
+1:00
24M
24.00 mi15:02:283:37:479:049:32
9:32
-0:28
40K
24.85 mi15:11:423:47:019:089:14
10:48
+1:16
25.2M
25.20 mi15:15:393:50:589:103:57
11:27
+0:39
Finish
26.22 mi15:26:354:01:549:1410:56
10:44
-0:43

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

8:30 /mi

Average Pace

9:14 /mi

Slowest Pace

11:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:21:15

58% of race

Time at Steady Pace

1:05:08

27% of race

Time at Slower Pace

35:31

15% of race

Average Pace: 9:14 /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 mi11:52:1727:368:5327:36
8:53
#21924
10K
6.21 mi12:19:2054:398:4827:03
8:42
#21428
15K
9.32 mi12:45:531:21:128:4326:33
8:33
#20815
20K
12.43 mi13:12:361:47:558:4126:43
8:36
#20318
Half
13.11 mi13:18:241:53:438:405:48
8:30
#20270
25K
15.53 mi13:39:122:14:318:4020:48
8:35
#19833
30K
18.64 mi14:08:502:44:098:4829:38
9:32
#19898
20M
20.00 mi14:22:172:57:368:5313:27
9:54
#19993
21M
21.00 mi14:33:413:09:009:0011:24
11:24
#20205
35K
21.75 mi14:40:253:15:449:006:44
9:00
#20127
23M
23.00 mi14:52:563:28:159:0312:31
10:00
#20160
24M
24.00 mi15:02:283:37:479:049:32
9:32
#20171
40K
24.85 mi15:11:423:47:019:089:14
10:48
#20331
25.2M
25.20 mi15:15:393:50:589:103:57
11:27
#20389
Finish
26.22 mi15:26:354:01:549:1410:56
10:44
#20625
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi219248584858419617(Top 69%)7230(Top 59%)7230(Top 421%)
10K6.21 mi3.10 mi21428+4968291+2938291+29320919(Top 74%)7981(Top 65%)7981(Top 465%)
15K9.32 mi3.11 mi20815+6137935+3567935+35619617(Top 69%)7230(Top 59%)7230(Top 421%)
20K12.43 mi3.11 mi20318+4977661+2747661+27418859(Top 66%)6832(Top 56%)6832(Top 398%)
Half13.11 mi0.68 mi20270+487635+267635+2619290(Top 68%)7081(Top 58%)7081(Top 412%)
25K15.53 mi2.42 mi19833+4377388+2477388+24717698(Top 62%)6254(Top 51%)6254(Top 364%)
30K18.64 mi3.11 mi19898-657464-767464-7620099(Top 71%)7712(Top 63%)7712(Top 449%)
20M20.00 mi1.36 mi19993-957541-777541-7720619(Top 73%)8150(Top 67%)8150(Top 474%)
21M21.00 mi1.00 mi20205-2127698-1577698-15722404(Top 79%)9193(Top 75%)9193(Top 535%)
35K21.75 mi0.75 mi20127+787661+377661+3718280(Top 64%)7072(Top 58%)7072(Top 412%)
23M23.00 mi1.25 mi20160-337707-467707-4620491(Top 72%)8291(Top 68%)8291(Top 483%)
24M24.00 mi1.00 mi20171-117736-297736-2919755(Top 70%)7962(Top 65%)7962(Top 463%)
40K24.85 mi0.85 mi20331-1607833-977833-9722686(Top 80%)9545(Top 78%)9545(Top 556%)
25.2M25.20 mi0.35 mi20389-587868-357868-3521952(Top 77%)9124(Top 75%)9124(Top 531%)
Finish26.22 mi1.02 mi20625-2368012-1448012-14424804(Top 87%)10564(Top 86%)10564(Top 615%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21stories
+97ft-345ft

Overall

19617

Females

7230

F40-44

7230

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

20919

Females

7981

F40-44

7981

10K→15K

6.2 - 9.3 mi

Top 69%
×3stories
+67ft-78ft

Overall

19617

Females

7230

F40-44

7230

15K→20K

9.3 - 12.4 mi

Top 66%
×5stories
+106ft-86ft

Overall

18859

Females

6832

F40-44

6832

20K→Half

12.4 - 13.1 mi

Top 68%
×2stories
+19ft-37ft

Overall

19290

Females

7081

F40-44

7081

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

17698

Females

6254

F40-44

6254

25K→30K

15.5 - 18.6 mi

Top 71%
×9stories
+181ft-148ft

Overall

20099

Females

7712

F40-44

7712

30K→20M

18.6 - 20.0 mi

Top 73%
×5stories
+64ft-50ft

Overall

20619

Females

8150

F40-44

8150

20M→21M

20.0 - 21.0 mi

Top 79%
×8stories
+106ft-24ft

Overall

22404

Females

9193

F40-44

9193

21M→35K

21.0 - 21.8 mi

Top 64%
×7stories
+17ft-86ft

Overall

18280

Females

7072

F40-44

7072

35K→23M

21.8 - 23.0 mi

Top 72%
×5stories
+23ft-63ft

Overall

20491

Females

8291

F40-44

8291

23M→24M

23.0 - 24.0 mi

Top 70%
×6stories
+12ft-82ft

Overall

19755

Females

7962

F40-44

7962

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

22686

Females

9545

F40-44

9545

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

21952

Females

9124

F40-44

9124

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2stories
+22ft-21ft

Overall

24804

Females

10564

F40-44

10564

Passing Analysis

Category:
Athletes Passed
2839
Passed By
1540
Net Change
+1299
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21924
5K → 10K58791+496#21924#21428
10K → 15K63421+613#21428#20815
15K → 20K51316+497#20815#20318
20K → Half6113+48#20318#20270
Half → 25K45013+437#20270#19833
25K → 30K199264-65#19833#19898
30K → 20M83178-95#19898#19993
20M → 21M37249-212#19993#20205
21M → 35K9517+78#20205#20127
35K → 23M77110-33#20127#20160
23M → 24M5263-11#20160#20171
24M → 40K31191-160#20171#20331
40K → 25.2M967-58#20331#20389
25.2M → Finish11247-236#20389#20625
TOTALS28391540+1299
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing