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BOSTON MARATHON 2025

Erica Dillon

Bib: 31933•F

MA

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

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:11/mi
28:32
↑ 97↓ 3451.5%
10K· 6.21 mi
8:47/mi
55:48
↑ 79↓ 1380.4%
15K· 9.32 mi
9:10/mi
1:24:18
↑ 67↓ 78
20K· 12.43 mi
9:47/mi
1:54:41
↑ 106↓ 860.1%
Half· 13.11 mi
10:02/mi
2:01:32
↑ 19↓ 370.5%
25K· 15.53 mi
10:44/mi
2:27:33
↑ 66↓ 880.2%
30K· 18.64 mi
11:09/mi
3:02:10
↑ 181↓ 1480.2%
20M
14:20/mi
3:21:39
↑ 64↓ 500.2%
21M
13:15/mi
3:34:54
↑ 106↓ 241.6%
35K· 21.75 mi
11:23/mi
3:43:25
↑ 17↓ 861.7%
23M
11:20/mi
3:57:36
↑ 23↓ 630.6%
24M
11:50/mi
4:09:26
↓ 821.3%
40K· 24.85 mi
11:41/mi
4:19:25
↓ 200.3%
25.2M
13:09/mi
4:23:57
↑ 13↓ 160.2%
Finish· 26.22 mi
10:56/mi
4:35:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:01:32
Pace9:16 /mi
2nd Half
Distance13.11 mi
Time2:33:33
Pace11:43 /mi
📊Positive Split: 26.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:5328:329:1128:32
9:11
-
10K
6.21 mi12:18:0955:488:5927:16
8:47
-0:24
15K
9.32 mi12:46:391:24:189:0328:30
9:10
+0:23
20K
12.43 mi13:17:021:54:419:1430:23
9:47
+0:37
Half
13.11 mi13:23:532:01:329:166:51
10:02
+0:15
25K
15.53 mi13:49:542:27:339:3026:01
10:44
+0:42
30K
18.64 mi14:24:313:02:109:4634:37
11:09
+0:25
20M
20.00 mi14:44:003:21:3910:0519:29
14:20
+3:11
21M
21.00 mi14:57:153:34:5410:1413:15
13:15
-1:05
35K
21.75 mi15:05:463:43:2510:168:31
11:23
-1:52
23M
23.00 mi15:19:573:57:3610:2014:11
11:20
-0:03
24M
24.00 mi15:31:474:09:2610:2411:50
11:50
+0:30
40K
24.85 mi15:41:464:19:2510:269:59
11:41
-0:09
25.2M
25.20 mi15:46:184:23:5710:284:32
13:09
+1:28
Finish
26.22 mi15:57:264:35:0510:3011:08
10:56
-2:13

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

8:47 /mi

Average Pace

10:30 /mi

Slowest Pace

14:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:01:32

44% of race

Time at Steady Pace

1:56:17

42% of race

Time at Slower Pace

37:16

14% of race

Average Pace: 10:29 /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 mi11:50:5328:329:1128:32
9:11
#23186
10K
6.21 mi12:18:0955:488:5927:16
8:47
#22359
15K
9.32 mi12:46:391:24:189:0328:30
9:10
#22468
20K
12.43 mi13:17:021:54:419:1430:23
9:47
#22904
Half
13.11 mi13:23:532:01:329:166:51
10:02
#23041
25K
15.53 mi13:49:542:27:339:3026:01
10:44
#23413
30K
18.64 mi14:24:313:02:109:4634:37
11:09
#23598
20M
20.00 mi14:44:003:21:3910:0519:29
14:20
#24205
21M
21.00 mi14:57:153:34:5410:1413:15
13:15
#24312
35K
21.75 mi15:05:463:43:2510:168:31
11:23
#24341
23M
23.00 mi15:19:573:57:3610:2014:11
11:20
#24318
24M
24.00 mi15:31:474:09:2610:2411:50
11:50
#24394
40K
24.85 mi15:41:464:19:2510:269:59
11:41
#24411
25.2M
25.20 mi15:46:184:23:5710:284:32
13:09
#24430
Finish
26.22 mi15:57:264:35:0510:3011:08
10:56
#24464
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi231869269926922770(Top 80%)8986(Top 73%)8986(Top 164%)
10K6.21 mi3.10 mi22359+8278814+4558814+45521302(Top 75%)8199(Top 67%)8199(Top 150%)
15K9.32 mi3.11 mi22468-1098845-318845-3122770(Top 80%)8986(Top 73%)8986(Top 164%)
20K12.43 mi3.11 mi22904-4369075-2309075-23023717(Top 83%)9558(Top 78%)9558(Top 175%)
Half13.11 mi0.68 mi23041-1379148-739148-7324914(Top 88%)10222(Top 84%)10222(Top 187%)
25K15.53 mi2.42 mi23413-3729367-2199367-21924774(Top 87%)10168(Top 83%)10168(Top 186%)
30K18.64 mi3.11 mi23598-1859511-1449511-14424285(Top 85%)10017(Top 82%)10017(Top 183%)
20M20.00 mi1.36 mi24205-6079864-3539864-35327540(Top 97%)11842(Top 97%)11842(Top 217%)
21M21.00 mi1.00 mi24312-1079938-749938-7425376(Top 89%)10749(Top 88%)10749(Top 197%)
35K21.75 mi0.75 mi24341-299955-179955-1724922(Top 88%)10544(Top 86%)10544(Top 193%)
23M23.00 mi1.25 mi24318+239957-29957-223957(Top 84%)10082(Top 82%)10082(Top 184%)
24M24.00 mi1.00 mi24394-7610012-5510012-5525471(Top 90%)10864(Top 89%)10864(Top 199%)
40K24.85 mi0.85 mi24411-1710024-1210024-1224450(Top 86%)10398(Top 85%)10398(Top 190%)
25.2M25.20 mi0.35 mi24430-1910042-1810042-1825258(Top 89%)10823(Top 89%)10823(Top 198%)
Finish26.22 mi1.02 mi24464-3410083-4110083-4125229(Top 89%)10760(Top 88%)10760(Top 197%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21story building
+97ft-345ft

Overall

22770

Females

8986

F18-39

8986

5K→10K

3.1 - 6.2 mi

Top 75%
×5story building
+79ft-138ft

Overall

21302

Females

8199

F18-39

8199

10K→15K

6.2 - 9.3 mi

Top 80%
×3story building
+67ft-78ft

Overall

22770

Females

8986

F18-39

8986

15K→20K

9.3 - 12.4 mi

Top 83%
×5story building
+106ft-86ft

Overall

23717

Females

9558

F18-39

9558

20K→Half

12.4 - 13.1 mi

Top 88%
×2story building
+19ft-37ft

Overall

24914

Females

10222

F18-39

10222

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

24774

Females

10168

F18-39

10168

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

24285

Females

10017

F18-39

10017

30K→20M

18.6 - 20.0 mi

Top 97%
×5story building
+64ft-50ft

Overall

27540

Females

11842

F18-39

11842

20M→21M

20.0 - 21.0 mi

Top 89%
×8story building
+106ft-24ft

Overall

25376

Females

10749

F18-39

10749

21M→35K

21.0 - 21.8 mi

Top 88%
×7story building
+17ft-86ft

Overall

24922

Females

10544

F18-39

10544

35K→23M

21.8 - 23.0 mi

Top 84%
×5story building
+23ft-63ft

Overall

23957

Females

10082

F18-39

10082

23M→24M

23.0 - 24.0 mi

Top 90%
×6story building
+12ft-82ft

Overall

25471

Females

10864

F18-39

10864

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

24450

Females

10398

F18-39

10398

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

25258

Females

10823

F18-39

10823

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2story building
+22ft-21ft

Overall

25229

Females

10760

F18-39

10760

Passing Analysis

Category:
Athletes Passed
1426
Passed By
2704
Net Change
-1278
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23186
5K → 10K85326+827#23186#22359
10K → 15K139248-109#22359#22468
15K → 20K75511-436#22468#22904
20K → Half9146-137#22904#23041
Half → 25K39411-372#23041#23413
25K → 30K92277-185#23413#23598
30K → 20M9616-607#23598#24205
20M → 21M27134-107#24205#24312
21M → 35K2554-29#24312#24341
35K → 23M7047+23#24341#24318
23M → 24M28104-76#24318#24394
24M → 40K2744-17#24394#24411
40K → 25.2M827-19#24411#24430
25.2M → Finish2559-34#24430#24464
TOTALS14262704-1278
📊

Passing Visuals

Category:
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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