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BOSTON MARATHON 2025

Corinne Batsu

Bib: 9508•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 24%
Gender (Female)
#0 / 12228
Top 7%
Division (F18-39)
#0 / 5469
Top 14%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:43
Rank: #5185
Start → 5K
20:43 | 6:40/mi
10K· 6.21 mi
41:28
Rank: #5148 (+37)
5K → 10K
20:45 | 6:41/mi
15K· 9.32 mi
1:02:20
Rank: #5149 (-1)
10K → 15K
20:52 | 6:43/mi
20K· 12.43 mi
1:23:50
Rank: #5441 (-292)
15K → 20K
21:30 | 6:55/mi
Half· 13.11 mi
1:28:31
Rank: #5507 (-66)
20K → Half
4:41 | 6:52/mi
25K· 15.53 mi
1:45:57
Rank: #5899 (-392)
Half → 25K
17:26 | 7:11/mi
30K· 18.64 mi
2:09:23
Rank: #6271 (-372)
25K → 30K
23:26 | 7:33/mi
20M
2:19:53
Rank: #6355 (-84)
30K → 20M
10:30 | 7:44/mi
21M
2:28:13
Rank: #6426 (-71)
20M → 21M
8:20 | 8:20/mi
35K· 21.75 mi
2:33:46
Rank: #6439 (-13)
21M → 35K
5:33 | 7:25/mi
23M
2:43:38
Rank: #6506 (-67)
35K → 23M
9:52 | 7:53/mi
24M
2:51:19
Rank: #6541 (-35)
23M → 24M
7:41 | 7:41/mi
40K· 24.85 mi
2:58:03
Rank: #6594 (-53)
24M → 40K
6:44 | 7:53/mi
25.2M
3:01:06
Rank: #6650 (-56)
40K → 25.2M
3:03 | 8:51/mi
Finish· 26.22 mi
3:09:01
Rank: #6780 (-130)
25.2M → Finish
7:55 | 7:46/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:31
Pace6:45 /mi
2nd Half
Distance13.11 mi
Time1:40:30
Pace7:40 /mi
📊Positive Split: 13.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:0820:436:4020:43
6:40
-
10K
6.21 mi11:06:5341:286:4020:45
6:41
+0:01
15K
9.32 mi11:27:451:02:206:4120:52
6:43
+0:02
20K
12.43 mi11:49:151:23:506:4521:30
6:55
+0:12
Half
13.11 mi11:53:561:28:316:454:41
6:52
-0:03
25K
15.53 mi12:11:221:45:576:4917:26
7:11
+0:19
30K
18.64 mi12:34:482:09:236:5623:26
7:33
+0:22
20M
20.00 mi12:45:182:19:537:0010:30
7:44
+0:11
21M
21.00 mi12:53:382:28:137:038:20
8:20
+0:36
35K
21.75 mi12:59:112:33:467:045:33
7:25
-0:55
23M
23.00 mi13:09:032:43:387:079:52
7:53
+0:28
24M
24.00 mi13:16:442:51:197:087:41
7:41
-0:12
40K
24.85 mi13:23:282:58:037:106:44
7:53
+0:12
25.2M
25.20 mi13:26:313:01:067:113:03
8:51
+0:58
Finish
26.22 mi13:34:263:09:017:137:55
7:46
-1:05

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

6:40 /mi

Average Pace

7:13 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:57

56% of race

Time at Steady Pace

55:05

29% of race

Time at Slower Pace

27:59

15% of race

Average Pace: 7:13 /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 mi10:46:0820:436:4020:43
6:40
#5185
10K
6.21 mi11:06:5341:286:4020:45
6:41
#5148
15K
9.32 mi11:27:451:02:206:4120:52
6:43
#5149
20K
12.43 mi11:49:151:23:506:4521:30
6:55
#5441
Half
13.11 mi11:53:561:28:316:454:41
6:52
#5507
25K
15.53 mi12:11:221:45:576:4917:26
7:11
#5899
30K
18.64 mi12:34:482:09:236:5623:26
7:33
#6271
20M
20.00 mi12:45:182:19:537:0010:30
7:44
#6355
21M
21.00 mi12:53:382:28:137:038:20
8:20
#6426
35K
21.75 mi12:59:112:33:467:045:33
7:25
#6439
23M
23.00 mi13:09:032:43:387:079:52
7:53
#6506
24M
24.00 mi13:16:442:51:197:087:41
7:41
#6541
40K
24.85 mi13:23:282:58:037:106:44
7:53
#6594
25.2M
25.20 mi13:26:313:01:067:113:03
8:51
#6650
Finish
26.22 mi13:34:263:09:017:137:55
7:46
#6780
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi51853483485257(Top 19%)387(Top 3%)387(Top 7%)
10K6.21 mi3.10 mi5148+37347+1347+15174(Top 18%)358(Top 3%)358(Top 7%)
15K9.32 mi3.11 mi5149-1349-2349-25257(Top 19%)387(Top 3%)387(Top 7%)
20K12.43 mi3.11 mi5441-292409-60409-606364(Top 22%)635(Top 5%)635(Top 12%)
Half13.11 mi0.68 mi5507-66425-16425-166734(Top 24%)712(Top 6%)712(Top 13%)
25K15.53 mi2.42 mi5899-392511-86511-867547(Top 27%)1055(Top 9%)1055(Top 19%)
30K18.64 mi3.11 mi6271-372609-98609-988046(Top 28%)1403(Top 11%)1403(Top 26%)
20M20.00 mi1.36 mi6355-84640-31640-318552(Top 30%)1762(Top 14%)1762(Top 32%)
21M21.00 mi1.00 mi6426-71676-36676-369446(Top 33%)2342(Top 19%)2342(Top 43%)
35K21.75 mi0.75 mi6439-13692-16692-168075(Top 28%)1701(Top 14%)1701(Top 31%)
23M23.00 mi1.25 mi6506-67744-52744-529157(Top 32%)2318(Top 19%)2318(Top 42%)
24M24.00 mi1.00 mi6541-35774-30774-309021(Top 32%)2329(Top 19%)2329(Top 43%)
40K24.85 mi0.85 mi6594-53819-45819-459310(Top 33%)2584(Top 21%)2584(Top 47%)
25.2M25.20 mi0.35 mi6650-56849-30849-3010925(Top 38%)3419(Top 28%)3419(Top 63%)
Finish26.22 mi1.02 mi6780-130916-67916-6711217(Top 39%)3553(Top 29%)3553(Top 65%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5257

Females

387

F18-39

387

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

5174

Females

358

F18-39

358

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5257

Females

387

F18-39

387

15K→20K

9.3 - 12.4 mi

Top 22%
×5stories
+106ft-86ft

Overall

6364

Females

635

F18-39

635

20K→Half

12.4 - 13.1 mi

Top 24%
×2stories
+19ft-37ft

Overall

6734

Females

712

F18-39

712

Half→25K

13.1 - 15.5 mi

Top 27%
×4stories
+66ft-88ft

Overall

7547

Females

1055

F18-39

1055

25K→30K

15.5 - 18.6 mi

Top 28%
×9stories
+181ft-148ft

Overall

8046

Females

1403

F18-39

1403

30K→20M

18.6 - 20.0 mi

Top 30%
×5stories
+64ft-50ft

Overall

8552

Females

1762

F18-39

1762

20M→21M

20.0 - 21.0 mi

Top 33%
×8stories
+106ft-24ft

Overall

9446

Females

2342

F18-39

2342

21M→35K

21.0 - 21.8 mi

Top 28%
×7stories
+17ft-86ft

Overall

8075

Females

1701

F18-39

1701

35K→23M

21.8 - 23.0 mi

Top 32%
×5stories
+23ft-63ft

Overall

9157

Females

2318

F18-39

2318

23M→24M

23.0 - 24.0 mi

Top 32%
×6stories
+12ft-82ft

Overall

9021

Females

2329

F18-39

2329

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

9310

Females

2584

F18-39

2584

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10925

Females

3419

F18-39

3419

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2stories
+22ft-21ft

Overall

11217

Females

3553

F18-39

3553

Passing Analysis

Category:
Athletes Passed
885
Passed By
2480
Net Change
-1595
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5185
5K → 10K196159+37#5185#5148
10K → 15K139140-1#5148#5149
15K → 20K53345-292#5149#5441
20K → Half1581-66#5441#5507
Half → 25K51443-392#5507#5899
25K → 30K82454-372#5899#6271
30K → 20M65149-84#6271#6355
20M → 21M42113-71#6355#6426
21M → 35K4457-13#6426#6439
35K → 23M65132-67#6439#6506
23M → 24M4984-35#6506#6541
24M → 40K4295-53#6541#6594
40K → 25.2M1773-56#6594#6650
25.2M → Finish25155-130#6650#6780
TOTALS8852480-1595
📊

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