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BOSTON MARATHON 2025

Dana Corsini

Bib: 21096•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 41%
Division (F45-49)
#0 / 1813
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:18
Rank: #15026
Start → 5K
24:18 | 7:49/mi
10K· 6.21 mi
48:38
Rank: #15027 (-1)
5K → 10K
24:20 | 7:50/mi
15K· 9.32 mi
1:13:23
Rank: #15279 (-252)
10K → 15K
24:45 | 7:58/mi
20K· 12.43 mi
1:39:27
Rank: #15951 (-672)
15K → 20K
26:04 | 8:23/mi
Half· 13.11 mi
1:44:57
Rank: #15968 (-17)
20K → Half
5:30 | 8:04/mi
25K· 15.53 mi
2:05:44
Rank: #16282 (-314)
Half → 25K
20:47 | 8:34/mi
30K· 18.64 mi
2:34:00
Rank: #16601 (-319)
25K → 30K
28:16 | 9:06/mi
20M
2:47:08
Rank: #16867 (-266)
30K → 20M
13:08 | 9:40/mi
21M
2:58:11
Rank: #17268 (-401)
20M → 21M
11:03 | 11:03/mi
35K· 21.75 mi
3:04:23
Rank: #17137 (+131)
21M → 35K
6:12 | 8:17/mi
23M
3:16:43
Rank: #17365 (-228)
35K → 23M
12:20 | 9:51/mi
24M
3:25:58
Rank: #17431 (-66)
23M → 24M
9:15 | 9:15/mi
40K· 24.85 mi
3:33:31
Rank: #17344 (+87)
24M → 40K
7:33 | 8:50/mi
25.2M
3:37:34
Rank: #17484 (-140)
40K → 25.2M
4:03 | 11:45/mi
Finish· 26.22 mi
3:46:20
Rank: #17462 (+22)
25.2M → Finish
8:46 | 8:36/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:57
Pace8:00 /mi
2nd Half
Distance13.11 mi
Time2:01:23
Pace9:16 /mi
📊Positive Split: 15.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:5424:187:4924:18
7:49
-
10K
6.21 mi11:42:1448:387:5024:20
7:50
+0:01
15K
9.32 mi12:06:591:13:237:5224:45
7:58
+0:08
20K
12.43 mi12:33:031:39:278:0026:04
8:23
+0:25
Half
13.11 mi12:38:331:44:578:005:30
8:04
-0:19
25K
15.53 mi12:59:202:05:448:0620:47
8:34
+0:30
30K
18.64 mi13:27:362:34:008:1628:16
9:06
+0:32
20M
20.00 mi13:40:442:47:088:2113:08
9:40
+0:34
21M
21.00 mi13:51:472:58:118:2911:03
11:03
+1:23
35K
21.75 mi13:57:593:04:238:296:12
8:17
-2:46
23M
23.00 mi14:10:193:16:438:3312:20
9:51
+1:34
24M
24.00 mi14:19:343:25:588:359:15
9:15
-0:36
40K
24.85 mi14:27:073:33:318:357:33
8:50
-0:25
25.2M
25.20 mi14:31:103:37:348:384:03
11:45
+2:55
Finish
26.22 mi14:39:563:46:208:388:46
8:36
-3:09

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

7:49 /mi

Average Pace

8:38 /mi

Slowest Pace

11:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:13:23

32% of race

Time at Steady Pace

1:43:08

46% of race

Time at Slower Pace

49:49

22% of race

Average Pace: 8:38 /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 mi11:17:5424:187:4924:18
7:49
#15026
10K
6.21 mi11:42:1448:387:5024:20
7:50
#15027
15K
9.32 mi12:06:591:13:237:5224:45
7:58
#15279
20K
12.43 mi12:33:031:39:278:0026:04
8:23
#15951
Half
13.11 mi12:38:331:44:578:005:30
8:04
#15968
25K
15.53 mi12:59:202:05:448:0620:47
8:34
#16282
30K
18.64 mi13:27:362:34:008:1628:16
9:06
#16601
20M
20.00 mi13:40:442:47:088:2113:08
9:40
#16867
21M
21.00 mi13:51:472:58:118:2911:03
11:03
#17268
35K
21.75 mi13:57:593:04:238:296:12
8:17
#17137
23M
23.00 mi14:10:193:16:438:3312:20
9:51
#17365
24M
24.00 mi14:19:343:25:588:359:15
9:15
#17431
40K
24.85 mi14:27:073:33:318:357:33
8:50
#17344
25.2M
25.20 mi14:31:103:37:348:384:03
11:45
#17484
Finish
26.22 mi14:39:563:46:208:388:46
8:36
#17462
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi150264547454715805(Top 56%)5042(Top 41%)5042(Top 278%)
10K6.21 mi3.10 mi15027-14567-204567-2015136(Top 53%)4624(Top 38%)4624(Top 255%)
15K9.32 mi3.11 mi15279-2524724-1574724-15715805(Top 56%)5042(Top 41%)5042(Top 278%)
20K12.43 mi3.11 mi15951-6725120-3965120-39617500(Top 62%)6052(Top 49%)6052(Top 334%)
Half13.11 mi0.68 mi15968-175134-145134-1416448(Top 58%)5453(Top 45%)5453(Top 301%)
25K15.53 mi2.42 mi16282-3145329-1955329-19517645(Top 62%)6220(Top 51%)6220(Top 343%)
30K18.64 mi3.11 mi16601-3195582-2535582-25318177(Top 64%)6678(Top 55%)6678(Top 368%)
20M20.00 mi1.36 mi16867-2665761-1795761-17919826(Top 70%)7684(Top 63%)7684(Top 424%)
21M21.00 mi1.00 mi17268-4016033-2726033-27221540(Top 76%)8730(Top 71%)8730(Top 482%)
35K21.75 mi0.75 mi17137+1315985+485985+4814233(Top 50%)4821(Top 39%)4821(Top 266%)
23M23.00 mi1.25 mi17365-2286148-1636148-16319961(Top 70%)8028(Top 66%)8028(Top 443%)
24M24.00 mi1.00 mi17431-666209-616209-6118596(Top 65%)7337(Top 60%)7337(Top 405%)
40K24.85 mi0.85 mi17344+876183+266183+2615393(Top 54%)5750(Top 47%)5750(Top 317%)
25.2M25.20 mi0.35 mi17484-1406281-986281-9822674(Top 80%)9492(Top 78%)9492(Top 524%)
Finish26.22 mi1.02 mi17462+226291-106291-1016879(Top 59%)6501(Top 53%)6501(Top 359%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21stories
+97ft-345ft

Overall

15805

Females

5042

F45-49

5042

5K→10K

3.1 - 6.2 mi

Top 53%
×5stories
+79ft-138ft

Overall

15136

Females

4624

F45-49

4624

10K→15K

6.2 - 9.3 mi

Top 56%
×3stories
+67ft-78ft

Overall

15805

Females

5042

F45-49

5042

15K→20K

9.3 - 12.4 mi

Top 62%
×5stories
+106ft-86ft

Overall

17500

Females

6052

F45-49

6052

20K→Half

12.4 - 13.1 mi

Top 58%
×2stories
+19ft-37ft

Overall

16448

Females

5453

F45-49

5453

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

17645

Females

6220

F45-49

6220

25K→30K

15.5 - 18.6 mi

Top 64%
×9stories
+181ft-148ft

Overall

18177

Females

6678

F45-49

6678

30K→20M

18.6 - 20.0 mi

Top 70%
×5stories
+64ft-50ft

Overall

19826

Females

7684

F45-49

7684

20M→21M

20.0 - 21.0 mi

Top 76%
×8stories
+106ft-24ft

Overall

21540

Females

8730

F45-49

8730

21M→35K

21.0 - 21.8 mi

Top 50%
×7stories
+17ft-86ft

Overall

14233

Females

4821

F45-49

4821

35K→23M

21.8 - 23.0 mi

Top 70%
×5stories
+23ft-63ft

Overall

19961

Females

8028

F45-49

8028

23M→24M

23.0 - 24.0 mi

Top 65%
×6stories
+12ft-82ft

Overall

18596

Females

7337

F45-49

7337

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

15393

Females

5750

F45-49

5750

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

22674

Females

9492

F45-49

9492

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2stories
+22ft-21ft

Overall

16879

Females

6501

F45-49

6501

Passing Analysis

Category:
Athletes Passed
1286
Passed By
3722
Net Change
-2436
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15026
5K → 10K284285-1#15026#15027
10K → 15K136388-252#15027#15279
15K → 20K72744-672#15279#15951
20K → Half2744-17#15951#15968
Half → 25K92406-314#15968#16282
25K → 30K133452-319#16282#16601
30K → 20M37303-266#16601#16867
20M → 21M45446-401#16867#17268
21M → 35K14312+131#17268#17137
35K → 23M61289-228#17137#17365
23M → 24M63129-66#17365#17431
24M → 40K11629+87#17431#17344
40K → 25.2M6146-140#17344#17484
25.2M → Finish7149+22#17484#17462
TOTALS12863722-2436
📊

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