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BOSTON MARATHON 2025

Lisa Cronin

Bib: 23930•F

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 40%
Division (F50-54)
#0 / 1303
Top 34%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:44
Rank: #18613
Start → 5K
25:44 | 8:17/mi
10K· 6.21 mi
51:43
Rank: #18758 (-145)
5K → 10K
25:59 | 8:22/mi
15K· 9.32 mi
1:17:31
Rank: #18508 (+250)
10K → 15K
25:48 | 8:18/mi
20K· 12.43 mi
1:43:34
Rank: #18213 (+295)
15K → 20K
26:03 | 8:23/mi
Half· 13.11 mi
1:49:12
Rank: #18166 (+47)
20K → Half
5:38 | 8:15/mi
25K· 15.53 mi
2:09:37
Rank: #17889 (+277)
Half → 25K
20:25 | 8:25/mi
30K· 18.64 mi
2:36:38
Rank: #17489 (+400)
25K → 30K
27:01 | 8:42/mi
20M
2:48:49
Rank: #17401 (+88)
30K → 20M
12:11 | 8:58/mi
21M
2:58:48
Rank: #17461 (-60)
20M → 21M
9:59 | 9:59/mi
35K· 21.75 mi
3:05:39
Rank: #17520 (-59)
21M → 35K
6:51 | 9:09/mi
23M
3:16:36
Rank: #17331 (+189)
35K → 23M
10:57 | 8:45/mi
24M
3:25:29
Rank: #17301 (+30)
23M → 24M
8:53 | 8:53/mi
40K· 24.85 mi
3:33:15
Rank: #17274 (+27)
24M → 40K
7:46 | 9:05/mi
25.2M
3:36:41
Rank: #17269 (+5)
40K → 25.2M
3:26 | 9:57/mi
Finish· 26.22 mi
3:45:38
Rank: #17299 (-30)
25.2M → Finish
8:57 | 8:47/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:12
Pace8:20 /mi
2nd Half
Distance13.11 mi
Time1:56:26
Pace8:53 /mi
📊Positive Split: 6.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:5425:448:1725:44
8:17
-
10K
6.21 mi11:49:5351:438:1925:59
8:22
+0:05
15K
9.32 mi12:15:411:17:318:1925:48
8:18
-0:04
20K
12.43 mi12:41:441:43:348:2026:03
8:23
+0:05
Half
13.11 mi12:47:221:49:128:205:38
8:15
-0:08
25K
15.53 mi13:07:472:09:378:2120:25
8:25
+0:10
30K
18.64 mi13:34:482:36:388:2427:01
8:42
+0:17
20M
20.00 mi13:46:592:48:498:2612:11
8:58
+0:16
21M
21.00 mi13:56:582:58:488:319:59
9:59
+1:01
35K
21.75 mi14:03:493:05:398:326:51
9:09
-0:50
23M
23.00 mi14:14:463:16:368:3310:57
8:45
-0:24
24M
24.00 mi14:23:393:25:298:348:53
8:53
+0:08
40K
24.85 mi14:31:253:33:158:357:46
9:05
+0:12
25.2M
25.20 mi14:34:513:36:418:363:26
9:57
+0:52
Finish
26.22 mi14:43:483:45:388:378:57
8:47
-1:10

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

8:15 /mi

Average Pace

8:37 /mi

Slowest Pace

9:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:37

57% of race

Time at Steady Pace

1:07:59

30% of race

Time at Slower Pace

28:02

12% of race

Average Pace: 8:36 /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 mi11:23:5425:448:1725:44
8:17
#18613
10K
6.21 mi11:49:5351:438:1925:59
8:22
#18758
15K
9.32 mi12:15:411:17:318:1925:48
8:18
#18508
20K
12.43 mi12:41:441:43:348:2026:03
8:23
#18213
Half
13.11 mi12:47:221:49:128:205:38
8:15
#18166
25K
15.53 mi13:07:472:09:378:2120:25
8:25
#17889
30K
18.64 mi13:34:482:36:388:2427:01
8:42
#17489
20M
20.00 mi13:46:592:48:498:2612:11
8:58
#17401
21M
21.00 mi13:56:582:58:488:319:59
9:59
#17461
35K
21.75 mi14:03:493:05:398:326:51
9:09
#17520
23M
23.00 mi14:14:463:16:368:3310:57
8:45
#17331
24M
24.00 mi14:23:393:25:298:348:53
8:53
#17301
40K
24.85 mi14:31:253:33:158:357:46
9:05
#17274
25.2M
25.20 mi14:34:513:36:418:363:26
9:57
#17269
Finish
26.22 mi14:43:483:45:388:378:57
8:47
#17299
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi186136690669018093(Top 64%)6375(Top 52%)6375(Top 489%)
10K6.21 mi3.10 mi18758-1456770-806770-8018961(Top 67%)6859(Top 56%)6859(Top 526%)
15K9.32 mi3.11 mi18508+2506630+1406630+14018093(Top 64%)6375(Top 52%)6375(Top 489%)
20K12.43 mi3.11 mi18213+2956467+1636467+16317471(Top 62%)6039(Top 49%)6039(Top 463%)
Half13.11 mi0.68 mi18166+476439+286439+2817706(Top 62%)6160(Top 50%)6160(Top 473%)
25K15.53 mi2.42 mi17889+2776290+1496290+14916717(Top 59%)5702(Top 47%)5702(Top 438%)
30K18.64 mi3.11 mi17489+4006114+1766114+17615994(Top 56%)5460(Top 45%)5460(Top 419%)
20M20.00 mi1.36 mi17401+886083+316083+3116631(Top 59%)5939(Top 49%)5939(Top 456%)
21M21.00 mi1.00 mi17461-606148-656148-6518246(Top 64%)6917(Top 57%)6917(Top 531%)
35K21.75 mi0.75 mi17520-596197-496197-4918998(Top 67%)7449(Top 61%)7449(Top 572%)
23M23.00 mi1.25 mi17331+1896128+696128+6914831(Top 52%)5246(Top 43%)5246(Top 403%)
24M24.00 mi1.00 mi17301+306138-106138-1016779(Top 59%)6369(Top 52%)6369(Top 489%)
40K24.85 mi0.85 mi17274+276142-46142-416796(Top 59%)6476(Top 53%)6476(Top 497%)
25.2M25.20 mi0.35 mi17269+56152-106152-1016864(Top 59%)6518(Top 53%)6518(Top 500%)
Finish26.22 mi1.02 mi17299-306188-366188-3617971(Top 63%)7065(Top 58%)7065(Top 542%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21stories
+97ft-345ft

Overall

18093

Females

6375

F50-54

6375

5K→10K

3.1 - 6.2 mi

Top 67%
×5stories
+79ft-138ft

Overall

18961

Females

6859

F50-54

6859

10K→15K

6.2 - 9.3 mi

Top 64%
×3stories
+67ft-78ft

Overall

18093

Females

6375

F50-54

6375

15K→20K

9.3 - 12.4 mi

Top 62%
×5stories
+106ft-86ft

Overall

17471

Females

6039

F50-54

6039

20K→Half

12.4 - 13.1 mi

Top 62%
×2stories
+19ft-37ft

Overall

17706

Females

6160

F50-54

6160

Half→25K

13.1 - 15.5 mi

Top 59%
×4stories
+66ft-88ft

Overall

16717

Females

5702

F50-54

5702

25K→30K

15.5 - 18.6 mi

Top 56%
×9stories
+181ft-148ft

Overall

15994

Females

5460

F50-54

5460

30K→20M

18.6 - 20.0 mi

Top 59%
×5stories
+64ft-50ft

Overall

16631

Females

5939

F50-54

5939

20M→21M

20.0 - 21.0 mi

Top 64%
×8stories
+106ft-24ft

Overall

18246

Females

6917

F50-54

6917

21M→35K

21.0 - 21.8 mi

Top 67%
×7stories
+17ft-86ft

Overall

18998

Females

7449

F50-54

7449

35K→23M

21.8 - 23.0 mi

Top 52%
×5stories
+23ft-63ft

Overall

14831

Females

5246

F50-54

5246

23M→24M

23.0 - 24.0 mi

Top 59%
×6stories
+12ft-82ft

Overall

16779

Females

6369

F50-54

6369

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

16796

Females

6476

F50-54

6476

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

16864

Females

6518

F50-54

6518

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2stories
+22ft-21ft

Overall

17971

Females

7065

F50-54

7065

Passing Analysis

Category:
Athletes Passed
2482
Passed By
1168
Net Change
+1314
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18613
5K → 10K200345-145#18613#18758
10K → 15K33686+250#18758#18508
15K → 20K34348+295#18508#18213
20K → Half6518+47#18213#18166
Half → 25K31740+277#18166#17889
25K → 30K45555+400#17889#17489
30K → 20M14658+88#17489#17401
20M → 21M87147-60#17401#17461
21M → 35K53112-59#17461#17520
35K → 23M21425+189#17520#17331
23M → 24M9565+30#17331#17301
24M → 40K7851+27#17301#17274
40K → 25.2M3934+5#17274#17269
25.2M → Finish5484-30#17269#17299
TOTALS24821168+1314
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing