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BOSTON MARATHON 2025

Erika Dell

Bib: 20407•F

MT

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 38%
Masters (Masters Women)
#0 / 6759
Top 24%
Division (F40-44)
#0 / 1718
Top 47%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:02
Rank: #17066
Start → 5K
25:02 | 8:03/mi
10K· 6.21 mi
50:07
Rank: #17005 (+61)
5K → 10K
25:05 | 8:04/mi
15K· 9.32 mi
1:15:03
Rank: #16720 (+285)
10K → 15K
24:56 | 8:02/mi
20K· 12.43 mi
1:40:14
Rank: #16423 (+297)
15K → 20K
25:11 | 8:06/mi
Half· 13.11 mi
1:45:39
Rank: #16380 (+43)
20K → Half
5:25 | 7:56/mi
25K· 15.53 mi
2:05:40
Rank: #16243 (+137)
Half → 25K
20:01 | 8:15/mi
30K· 18.64 mi
2:31:52
Rank: #15848 (+395)
25K → 30K
26:12 | 8:26/mi
20M
2:43:38
Rank: #15719 (+129)
30K → 20M
11:46 | 8:40/mi
21M
2:52:38
Rank: #15538 (+181)
20M → 21M
9:00 | 9:00/mi
35K· 21.75 mi
2:58:42
Rank: #15439 (+99)
21M → 35K
6:04 | 8:07/mi
23M
3:09:08
Rank: #15211 (+228)
35K → 23M
10:26 | 8:20/mi
24M
3:17:14
Rank: #15009 (+202)
23M → 24M
8:06 | 8:06/mi
40K· 24.85 mi
3:24:16
Rank: #14867 (+142)
24M → 40K
7:02 | 8:14/mi
25.2M
3:27:16
Rank: #14783 (+84)
40K → 25.2M
3:00 | 8:42/mi
Finish· 26.22 mi
3:35:21
Rank: #14647 (+136)
25.2M → Finish
8:05 | 7:56/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:39
Pace8:04 /mi
2nd Half
Distance13.11 mi
Time1:49:42
Pace8:22 /mi
📊Positive Split: 3.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:4325:028:0325:02
8:03
-
10K
6.21 mi11:43:4850:078:0425:05
8:04
+0:01
15K
9.32 mi12:08:441:15:038:0324:56
8:02
-0:02
20K
12.43 mi12:33:551:40:148:0425:11
8:06
+0:04
Half
13.11 mi12:39:201:45:398:045:25
7:56
-0:10
25K
15.53 mi12:59:212:05:408:0520:01
8:15
+0:19
30K
18.64 mi13:25:332:31:528:0926:12
8:26
+0:11
20M
20.00 mi13:37:192:43:388:1111:46
8:40
+0:14
21M
21.00 mi13:46:192:52:388:139:00
9:00
+0:20
35K
21.75 mi13:52:232:58:428:136:04
8:07
-0:53
23M
23.00 mi14:02:493:09:088:1310:26
8:20
+0:13
24M
24.00 mi14:10:553:17:148:138:06
8:06
-0:14
40K
24.85 mi14:17:573:24:168:137:02
8:14
+0:08
25.2M
25.20 mi14:20:573:27:168:133:00
8:42
+0:28
Finish
26.22 mi14:29:023:35:218:138:05
7:56
-0:46

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

7:56 /mi

Average Pace

8:13 /mi

Slowest Pace

9:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:26:21

96% of race

Time at Steady Pace

9:00

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:13 /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 mi11:18:4325:028:0325:02
8:03
#17066
10K
6.21 mi11:43:4850:078:0425:05
8:04
#17005
15K
9.32 mi12:08:441:15:038:0324:56
8:02
#16720
20K
12.43 mi12:33:551:40:148:0425:11
8:06
#16423
Half
13.11 mi12:39:201:45:398:045:25
7:56
#16380
25K
15.53 mi12:59:212:05:408:0520:01
8:15
#16243
30K
18.64 mi13:25:332:31:528:0926:12
8:26
#15848
20M
20.00 mi13:37:192:43:388:1111:46
8:40
#15719
21M
21.00 mi13:46:192:52:388:139:00
9:00
#15538
35K
21.75 mi13:52:232:58:428:136:04
8:07
#15439
23M
23.00 mi14:02:493:09:088:1310:26
8:20
#15211
24M
24.00 mi14:10:553:17:148:138:06
8:06
#15009
40K
24.85 mi14:17:573:24:168:137:02
8:14
#14867
25.2M
25.20 mi14:20:573:27:168:133:00
8:42
#14783
Finish
26.22 mi14:29:023:35:218:138:05
7:56
#14647
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi170665770577016241(Top 57%)5275(Top 43%)5275(Top 307%)
10K6.21 mi3.10 mi17005+615729+415729+4117022(Top 60%)5714(Top 47%)5714(Top 333%)
15K9.32 mi3.11 mi16720+2855559+1705559+17016241(Top 57%)5275(Top 43%)5275(Top 307%)
20K12.43 mi3.11 mi16423+2975388+1715388+17115679(Top 55%)5024(Top 41%)5024(Top 292%)
Half13.11 mi0.68 mi16380+435367+215367+2115476(Top 54%)4876(Top 40%)4876(Top 284%)
25K15.53 mi2.42 mi16243+1375306+615306+6115649(Top 55%)5097(Top 42%)5097(Top 297%)
30K18.64 mi3.11 mi15848+3955135+1715135+17114359(Top 51%)4562(Top 37%)4562(Top 266%)
20M20.00 mi1.36 mi15719+1295105+305105+3014817(Top 52%)4945(Top 40%)4945(Top 288%)
21M21.00 mi1.00 mi15538+1815039+665039+6613539(Top 48%)4387(Top 36%)4387(Top 255%)
35K21.75 mi0.75 mi15439+994992+474992+4713046(Top 46%)4194(Top 34%)4194(Top 244%)
23M23.00 mi1.25 mi15211+2284898+944898+9412270(Top 43%)3895(Top 32%)3895(Top 227%)
24M24.00 mi1.00 mi15009+2024806+924806+9211947(Top 42%)3786(Top 31%)3786(Top 220%)
40K24.85 mi0.85 mi14867+1424755+514755+5111762(Top 41%)3797(Top 31%)3797(Top 221%)
25.2M25.20 mi0.35 mi14783+844710+454710+4510137(Top 36%)3124(Top 26%)3124(Top 182%)
Finish26.22 mi1.02 mi14647+1364671+394671+3912460(Top 44%)4168(Top 34%)4168(Top 243%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21stories
+97ft-345ft

Overall

16241

Females

5275

F40-44

5275

5K→10K

3.1 - 6.2 mi

Top 60%
×5stories
+79ft-138ft

Overall

17022

Females

5714

F40-44

5714

10K→15K

6.2 - 9.3 mi

Top 57%
×3stories
+67ft-78ft

Overall

16241

Females

5275

F40-44

5275

15K→20K

9.3 - 12.4 mi

Top 55%
×5stories
+106ft-86ft

Overall

15679

Females

5024

F40-44

5024

20K→Half

12.4 - 13.1 mi

Top 54%
×2stories
+19ft-37ft

Overall

15476

Females

4876

F40-44

4876

Half→25K

13.1 - 15.5 mi

Top 55%
×4stories
+66ft-88ft

Overall

15649

Females

5097

F40-44

5097

25K→30K

15.5 - 18.6 mi

Top 51%
×9stories
+181ft-148ft

Overall

14359

Females

4562

F40-44

4562

30K→20M

18.6 - 20.0 mi

Top 52%
×5stories
+64ft-50ft

Overall

14817

Females

4945

F40-44

4945

20M→21M

20.0 - 21.0 mi

Top 48%
×8stories
+106ft-24ft

Overall

13539

Females

4387

F40-44

4387

21M→35K

21.0 - 21.8 mi

Top 46%
×7stories
+17ft-86ft

Overall

13046

Females

4194

F40-44

4194

35K→23M

21.8 - 23.0 mi

Top 43%
×5stories
+23ft-63ft

Overall

12270

Females

3895

F40-44

3895

23M→24M

23.0 - 24.0 mi

Top 42%
×6stories
+12ft-82ft

Overall

11947

Females

3786

F40-44

3786

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

11762

Females

3797

F40-44

3797

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

10137

Females

3124

F40-44

3124

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2stories
+22ft-21ft

Overall

12460

Females

4168

F40-44

4168

Passing Analysis

Category:
Athletes Passed
3133
Passed By
714
Net Change
+2419
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17066
5K → 10K327266+61#17066#17005
10K → 15K35873+285#17005#16720
15K → 20K37578+297#16720#16423
20K → Half6017+43#16423#16380
Half → 25K22083+137#16380#16243
25K → 30K44146+395#16243#15848
30K → 20M18354+129#15848#15719
20M → 21M21635+181#15719#15538
21M → 35K11213+99#15538#15439
35K → 23M24315+228#15439#15211
23M → 24M2064+202#15211#15009
24M → 40K15311+142#15009#14867
40K → 25.2M851+84#14867#14783
25.2M → Finish15418+136#14783#14647
TOTALS3133714+2419
📊

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