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BOSTON MARATHON 2025

Darlyn Heckman

Bib: 31107•F

PA

0:00
0:00
/ mi
Masters
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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
30:21
Rank: #25014
Start → 5K
30:21 | 9:46/mi
10K· 6.21 mi
1:00:34
Rank: #24855 (+159)
5K → 10K
30:13 | 9:44/mi
15K· 9.32 mi
1:30:55
Rank: #24719 (+136)
10K → 15K
30:21 | 9:46/mi
20K· 12.43 mi
2:01:40
Rank: #24520 (+199)
15K → 20K
30:45 | 9:54/mi
Half· 13.11 mi
2:08:12
Rank: #24477 (+43)
20K → Half
6:32 | 9:35/mi
25K· 15.53 mi
2:32:22
Rank: #24273 (+204)
Half → 25K
24:10 | 9:58/mi
30K· 18.64 mi
3:04:34
Rank: #23972 (+301)
25K → 30K
32:12 | 10:22/mi
20M
3:19:01
Rank: #23878 (+94)
30K → 20M
14:27 | 10:38/mi
21M
3:30:00
Rank: #23729 (+149)
20M → 21M
10:59 | 10:59/mi
35K· 21.75 mi
3:37:31
Rank: #23667 (+62)
21M → 35K
7:31 | 10:03/mi
23M
3:50:51
Rank: #23567 (+100)
35K → 23M
13:20 | 10:39/mi
24M
4:01:17
Rank: #23530 (+37)
23M → 24M
10:26 | 10:26/mi
40K· 24.85 mi
4:10:03
Rank: #23442 (+88)
24M → 40K
8:46 | 10:15/mi
25.2M
4:13:55
Rank: #23398 (+44)
40K → 25.2M
3:52 | 11:13/mi
Finish· 26.22 mi
4:23:28
Rank: #23325 (+73)
25.2M → Finish
9:33 | 9:22/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:08:12
Pace9:47 /mi
2nd Half
Distance13.11 mi
Time2:15:16
Pace10:19 /mi
📊Positive Split: 5.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:0430:219:4630:21
9:46
-
10K
6.21 mi12:25:171:00:349:4530:13
9:44
-0:02
15K
9.32 mi12:55:381:30:559:4530:21
9:46
+0:02
20K
12.43 mi13:26:232:01:409:4730:45
9:54
+0:08
Half
13.11 mi13:32:552:08:129:476:32
9:35
-0:19
25K
15.53 mi13:57:052:32:229:4924:10
9:58
+0:23
30K
18.64 mi14:29:173:04:349:5432:12
10:22
+0:24
20M
20.00 mi14:43:443:19:019:5714:27
10:38
+0:16
21M
21.00 mi14:54:433:30:0010:0010:59
10:59
+0:21
35K
21.75 mi15:02:143:37:3110:007:31
10:03
-0:56
23M
23.00 mi15:15:343:50:5110:0213:20
10:39
+0:36
24M
24.00 mi15:26:004:01:1710:0310:26
10:26
-0:13
40K
24.85 mi15:34:464:10:0310:048:46
10:15
-0:11
25.2M
25.20 mi15:38:384:13:5510:053:52
11:13
+0:58
Finish
26.22 mi15:48:114:23:2810:039:33
9:22
-1:51

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

9:22 /mi

Average Pace

10:03 /mi

Slowest Pace

11:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:58:12

68% of race

Time at Steady Pace

1:21:24

31% of race

Time at Slower Pace

3:52

1% of race

Average Pace: 10:03 /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 mi11:55:0430:219:4630:21
9:46
#25014
10K
6.21 mi12:25:171:00:349:4530:13
9:44
#24855
15K
9.32 mi12:55:381:30:559:4530:21
9:46
#24719
20K
12.43 mi13:26:232:01:409:4730:45
9:54
#24520
Half
13.11 mi13:32:552:08:129:476:32
9:35
#24477
25K
15.53 mi13:57:052:32:229:4924:10
9:58
#24273
30K
18.64 mi14:29:173:04:349:5432:12
10:22
#23972
20M
20.00 mi14:43:443:19:019:5714:27
10:38
#23878
21M
21.00 mi14:54:433:30:0010:0010:59
10:59
#23729
35K
21.75 mi15:02:143:37:3110:007:31
10:03
#23667
23M
23.00 mi15:15:343:50:5110:0213:20
10:39
#23567
24M
24.00 mi15:26:004:01:1710:0310:26
10:26
#23530
40K
24.85 mi15:34:464:10:0310:048:46
10:15
#23442
25.2M
25.20 mi15:38:384:13:5510:053:52
11:13
#23398
Finish
26.22 mi15:48:114:23:2810:039:33
9:22
#23325
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi25014102191021924480(Top 86%)9942(Top 81%)9942(Top 579%)
10K6.21 mi3.10 mi24855+15910152+6710152+6724686(Top 87%)10061(Top 82%)10061(Top 586%)
15K9.32 mi3.11 mi24719+13610071+8110071+8124480(Top 86%)9942(Top 81%)9942(Top 579%)
20K12.43 mi3.11 mi24520+1999985+869985+8624015(Top 85%)9713(Top 79%)9713(Top 565%)
Half13.11 mi0.68 mi24477+439966+199966+1923805(Top 84%)9592(Top 78%)9592(Top 558%)
25K15.53 mi2.42 mi24273+2049865+1019865+10123186(Top 82%)9297(Top 76%)9297(Top 541%)
30K18.64 mi3.11 mi23972+3019713+1529713+15222630(Top 80%)9123(Top 75%)9123(Top 531%)
20M20.00 mi1.36 mi23878+949683+309683+3022793(Top 80%)9309(Top 76%)9309(Top 542%)
21M21.00 mi1.00 mi23729+1499624+599624+5921376(Top 75%)8642(Top 71%)8642(Top 503%)
35K21.75 mi0.75 mi23667+629599+259599+2522064(Top 78%)9072(Top 74%)9072(Top 528%)
23M23.00 mi1.25 mi23567+1009563+369563+3622411(Top 79%)9294(Top 76%)9294(Top 541%)
24M24.00 mi1.00 mi23530+379560+39560+322649(Top 80%)9458(Top 77%)9458(Top 551%)
40K24.85 mi0.85 mi23442+889525+359525+3521270(Top 75%)8810(Top 72%)8810(Top 513%)
25.2M25.20 mi0.35 mi23398+449514+119514+1121325(Top 75%)8835(Top 72%)8835(Top 514%)
Finish26.22 mi1.02 mi23325+739489+259489+2520709(Top 73%)8514(Top 70%)8514(Top 496%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21stories
+97ft-345ft

Overall

24480

Females

9942

F40-44

9942

5K→10K

3.1 - 6.2 mi

Top 87%
×5stories
+79ft-138ft

Overall

24686

Females

10061

F40-44

10061

10K→15K

6.2 - 9.3 mi

Top 86%
×3stories
+67ft-78ft

Overall

24480

Females

9942

F40-44

9942

15K→20K

9.3 - 12.4 mi

Top 85%
×5stories
+106ft-86ft

Overall

24015

Females

9713

F40-44

9713

20K→Half

12.4 - 13.1 mi

Top 84%
×2stories
+19ft-37ft

Overall

23805

Females

9592

F40-44

9592

Half→25K

13.1 - 15.5 mi

Top 82%
×4stories
+66ft-88ft

Overall

23186

Females

9297

F40-44

9297

25K→30K

15.5 - 18.6 mi

Top 80%
×9stories
+181ft-148ft

Overall

22630

Females

9123

F40-44

9123

30K→20M

18.6 - 20.0 mi

Top 80%
×5stories
+64ft-50ft

Overall

22793

Females

9309

F40-44

9309

20M→21M

20.0 - 21.0 mi

Top 75%
×8stories
+106ft-24ft

Overall

21376

Females

8642

F40-44

8642

21M→35K

21.0 - 21.8 mi

Top 78%
×7stories
+17ft-86ft

Overall

22064

Females

9072

F40-44

9072

35K→23M

21.8 - 23.0 mi

Top 79%
×5stories
+23ft-63ft

Overall

22411

Females

9294

F40-44

9294

23M→24M

23.0 - 24.0 mi

Top 80%
×6stories
+12ft-82ft

Overall

22649

Females

9458

F40-44

9458

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

21270

Females

8810

F40-44

8810

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

21325

Females

8835

F40-44

8835

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2stories
+22ft-21ft

Overall

20709

Females

8514

F40-44

8514

Passing Analysis

Category:
Athletes Passed
2136
Passed By
447
Net Change
+1689
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25014
5K → 10K286127+159#25014#24855
10K → 15K20266+136#24855#24719
15K → 20K24546+199#24719#24520
20K → Half474+43#24520#24477
Half → 25K23228+204#24477#24273
25K → 30K33534+301#24273#23972
30K → 20M12329+94#23972#23878
20M → 21M16819+149#23878#23729
21M → 35K7412+62#23729#23667
35K → 23M12222+100#23667#23567
23M → 24M6629+37#23567#23530
24M → 40K10012+88#23530#23442
40K → 25.2M517+44#23442#23398
25.2M → Finish8512+73#23398#23325
TOTALS2136447+1689
📊

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