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BOSTON MARATHON 2025

Maria Cosimini

Bib: 32181•F

CT

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
32:29
Rank: #26652
Start → 5K
32:29 | 10:27/mi
10K· 6.21 mi
1:05:50
Rank: #26676 (-24)
5K → 10K
33:21 | 10:44/mi
15K· 9.32 mi
1:38:32
Rank: #26402 (+274)
10K → 15K
32:42 | 10:32/mi
20K· 12.43 mi
2:12:44
Rank: #26290 (+112)
15K → 20K
34:12 | 11:00/mi
Half· 13.11 mi
2:19:48
Rank: #26254 (+36)
20K → Half
7:04 | 10:21/mi
25K· 15.53 mi
2:47:45
Rank: #26193 (+61)
Half → 25K
27:57 | 11:32/mi
30K· 18.64 mi
3:25:41
Rank: #26130 (+63)
25K → 30K
37:56 | 12:13/mi
20M
3:41:43
Rank: #26042 (+88)
30K → 20M
16:02 | 11:48/mi
21M
3:54:24
Rank: #25981 (+61)
20M → 21M
12:41 | 12:41/mi
35K· 21.75 mi
4:03:49
Rank: #26006 (-25)
21M → 35K
9:25 | 12:35/mi
23M
4:19:14
Rank: #26001 (+5)
35K → 23M
15:25 | 12:19/mi
24M
4:31:51
Rank: #26045 (-44)
23M → 24M
12:37 | 12:37/mi
40K· 24.85 mi
4:42:11
Rank: #26025 (+20)
24M → 40K
10:20 | 12:05/mi
25.2M
4:46:07
Rank: #25993 (+32)
40K → 25.2M
3:56 | 11:24/mi
Finish· 26.22 mi
4:56:28
Rank: #25937 (+56)
25.2M → Finish
10:21 | 10:09/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:19:48
Pace10:40 /mi
2nd Half
Distance13.11 mi
Time2:36:40
Pace11:57 /mi
📊Positive Split: 12.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:57:2932:2910:2732:29
10:27
-
10K
6.21 mi12:30:501:05:5010:3633:21
10:44
+0:17
15K
9.32 mi13:03:321:38:3210:3432:42
10:32
-0:12
20K
12.43 mi13:37:442:12:4410:4134:12
11:00
+0:28
Half
13.11 mi13:44:482:19:4810:407:04
10:21
-0:39
25K
15.53 mi14:12:452:47:4510:4827:57
11:32
+1:11
30K
18.64 mi14:50:413:25:4111:0237:56
12:13
+0:41
20M
20.00 mi15:06:433:41:4311:0516:02
11:48
-0:25
21M
21.00 mi15:19:243:54:2411:1012:41
12:41
+0:53
35K
21.75 mi15:28:494:03:4911:139:25
12:35
-0:06
23M
23.00 mi15:44:144:19:1411:1615:25
12:19
-0:16
24M
24.00 mi15:56:514:31:5111:2012:37
12:37
+0:18
40K
24.85 mi16:07:114:42:1111:2110:20
12:05
-0:32
25.2M
25.20 mi16:11:074:46:0711:213:56
11:24
-0:41
Finish
26.22 mi16:21:284:56:2811:1910:21
10:09
-1:15

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

10:09 /mi

Average Pace

11:19 /mi

Slowest Pace

12:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:30:09

51% of race

Time at Steady Pace

47:55

16% of race

Time at Slower Pace

1:38:24

33% of race

Average Pace: 11:18 /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 mi11:57:2932:2910:2732:29
10:27
#26652
10K
6.21 mi12:30:501:05:5010:3633:21
10:44
#26676
15K
9.32 mi13:03:321:38:3210:3432:42
10:32
#26402
20K
12.43 mi13:37:442:12:4410:4134:12
11:00
#26290
Half
13.11 mi13:44:482:19:4810:407:04
10:21
#26254
25K
15.53 mi14:12:452:47:4510:4827:57
11:32
#26193
30K
18.64 mi14:50:413:25:4111:0237:56
12:13
#26130
20M
20.00 mi15:06:433:41:4311:0516:02
11:48
#26042
21M
21.00 mi15:19:243:54:2411:1012:41
12:41
#25981
35K
21.75 mi15:28:494:03:4911:139:25
12:35
#26006
23M
23.00 mi15:44:144:19:1411:1615:25
12:19
#26001
24M
24.00 mi15:56:514:31:5111:2012:37
12:37
#26045
40K
24.85 mi16:07:114:42:1111:2110:20
12:05
#26025
25.2M
25.20 mi16:11:074:46:0711:213:56
11:24
#25993
Finish
26.22 mi16:21:284:56:2811:1910:21
10:09
#25937
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26652111271112725984(Top 91%)10781(Top 88%)10781(Top 197%)
10K6.21 mi3.10 mi26676-2411148-2111148-2126654(Top 94%)11149(Top 91%)11149(Top 204%)
15K9.32 mi3.11 mi26402+27411002+14611002+14625984(Top 91%)10781(Top 88%)10781(Top 197%)
20K12.43 mi3.11 mi26290+11210939+6310939+6326007(Top 92%)10814(Top 88%)10814(Top 198%)
Half13.11 mi0.68 mi26254+3610922+1710922+1725533(Top 90%)10569(Top 86%)10569(Top 193%)
25K15.53 mi2.42 mi26193+6110890+3210890+3225893(Top 91%)10800(Top 88%)10800(Top 197%)
30K18.64 mi3.11 mi26130+6310893-310893-325830(Top 91%)10854(Top 89%)10854(Top 198%)
20M20.00 mi1.36 mi26042+8810859+3410859+3424970(Top 88%)10458(Top 86%)10458(Top 191%)
21M21.00 mi1.00 mi25981+6110837+2210837+2224637(Top 87%)10368(Top 85%)10368(Top 190%)
35K21.75 mi0.75 mi26006-2510859-2210859-2226542(Top 93%)11356(Top 93%)11356(Top 208%)
23M23.00 mi1.25 mi26001+510860-110860-125541(Top 90%)10881(Top 89%)10881(Top 199%)
24M24.00 mi1.00 mi26045-4410898-3810898-3826438(Top 93%)11340(Top 93%)11340(Top 207%)
40K24.85 mi0.85 mi26025+2010888+1010888+1025044(Top 88%)10695(Top 87%)10695(Top 196%)
25.2M25.20 mi0.35 mi25993+3210874+1410874+1421736(Top 77%)9042(Top 74%)9042(Top 165%)
Finish26.22 mi1.02 mi25937+5610857+1710857+1723384(Top 82%)9870(Top 81%)9870(Top 180%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21stories
+97ft-345ft

Overall

25984

Females

10781

F18-39

10781

5K→10K

3.1 - 6.2 mi

Top 94%
×5stories
+79ft-138ft

Overall

26654

Females

11149

F18-39

11149

10K→15K

6.2 - 9.3 mi

Top 91%
×3stories
+67ft-78ft

Overall

25984

Females

10781

F18-39

10781

15K→20K

9.3 - 12.4 mi

Top 92%
×5stories
+106ft-86ft

Overall

26007

Females

10814

F18-39

10814

20K→Half

12.4 - 13.1 mi

Top 90%
×2stories
+19ft-37ft

Overall

25533

Females

10569

F18-39

10569

Half→25K

13.1 - 15.5 mi

Top 91%
×4stories
+66ft-88ft

Overall

25893

Females

10800

F18-39

10800

25K→30K

15.5 - 18.6 mi

Top 91%
×9stories
+181ft-148ft

Overall

25830

Females

10854

F18-39

10854

30K→20M

18.6 - 20.0 mi

Top 88%
×5stories
+64ft-50ft

Overall

24970

Females

10458

F18-39

10458

20M→21M

20.0 - 21.0 mi

Top 87%
×8stories
+106ft-24ft

Overall

24637

Females

10368

F18-39

10368

21M→35K

21.0 - 21.8 mi

Top 93%
×7stories
+17ft-86ft

Overall

26542

Females

11356

F18-39

11356

35K→23M

21.8 - 23.0 mi

Top 90%
×5stories
+23ft-63ft

Overall

25541

Females

10881

F18-39

10881

23M→24M

23.0 - 24.0 mi

Top 93%
×6stories
+12ft-82ft

Overall

26438

Females

11340

F18-39

11340

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

25044

Females

10695

F18-39

10695

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

21736

Females

9042

F18-39

9042

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2stories
+22ft-21ft

Overall

23384

Females

9870

F18-39

9870

Passing Analysis

Category:
Athletes Passed
1301
Passed By
586
Net Change
+715
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26652
5K → 10K160184-24#26652#26676
10K → 15K29218+274#26676#26402
15K → 20K18270+112#26402#26290
20K → Half404+36#26290#26254
Half → 25K11958+61#26254#26193
25K → 30K13269+63#26193#26130
30K → 20M10517+88#26130#26042
20M → 21M709+61#26042#25981
21M → 35K1742-25#25981#26006
35K → 23M4540+5#26006#26001
23M → 24M1458-44#26001#26045
24M → 40K3111+20#26045#26025
40K → 25.2M331+32#26025#25993
25.2M → Finish615+56#25993#25937
TOTALS1301586+715
📊

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