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BOSTON MARATHON 2025

James Dean

Bib: 31075•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
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
10:02/mi
31:10
↑ 97↓ 3451.5%
10K· 6.21 mi
10:47/mi
1:04:40
↑ 79↓ 1380.4%
15K· 9.32 mi
12:10/mi
1:42:28
↑ 67↓ 78
20K· 12.43 mi
15:44/mi
2:31:22
↑ 106↓ 860.1%
Half· 13.11 mi
16:45/mi
2:42:48
↑ 19↓ 370.5%
25K· 15.53 mi
16:11/mi
3:22:02
↑ 66↓ 880.2%
30K· 18.64 mi
15:11/mi
4:09:12
↑ 181↓ 1480.2%
20M
14:31/mi
4:28:56
↑ 64↓ 500.2%
21M
15:03/mi
4:43:59
↑ 106↓ 241.6%
35K· 21.75 mi
14:15/mi
4:54:39
↑ 17↓ 861.7%
23M
15:27/mi
5:14:00
↑ 23↓ 630.6%
24M
14:24/mi
5:28:24
↓ 821.3%
40K· 24.85 mi
14:35/mi
5:40:52
↓ 200.3%
25.2M
15:22/mi
5:46:10
↑ 13↓ 160.2%
Finish· 26.22 mi
13:59/mi
6:00:25
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:42:48
Pace12:25 /mi
2nd Half
Distance13.11 mi
Time3:17:37
Pace15:04 /mi
📊Positive Split: 21.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:2431:1010:0231:10
10:02
-
10K
6.21 mi12:27:541:04:4010:2433:30
10:47
+0:45
15K
9.32 mi13:05:421:42:2811:0037:48
12:10
+1:23
20K
12.43 mi13:54:362:31:2212:1148:54
15:44
+3:34
Half
13.11 mi14:06:022:42:4812:2511:26
16:45
+1:01
25K
15.53 mi14:45:163:22:0213:0039:14
16:11
-0:34
30K
18.64 mi15:32:264:09:1213:2247:10
15:11
-1:00
20M
20.00 mi15:52:104:28:5613:2719:44
14:31
-0:40
21M
21.00 mi16:07:134:43:5913:3115:03
15:03
+0:32
35K
21.75 mi16:17:534:54:3913:3310:40
14:15
-0:48
23M
23.00 mi16:37:145:14:0013:3919:21
15:27
+1:12
24M
24.00 mi16:51:385:28:2413:4114:24
14:24
-1:03
40K
24.85 mi17:04:065:40:5213:4312:28
14:35
+0:11
25.2M
25.20 mi17:09:245:46:1013:445:18
15:22
+0:47
Finish
26.22 mi17:23:396:00:2513:4514:15
13:59
-1:23

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

10:02 /mi

Average Pace

13:45 /mi

Slowest Pace

16:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:28

28% of race

Time at Steady Pace

2:38:23

44% of race

Time at Slower Pace

1:39:34

28% of race

Average Pace: 13:45 /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 mi11:54:2431:1010:0231:10
10:02
#25656
10K
6.21 mi12:27:541:04:4010:2433:30
10:47
#26307
15K
9.32 mi13:05:421:42:2811:0037:48
12:10
#27062
20K
12.43 mi13:54:362:31:2212:1148:54
15:44
#27932
Half
13.11 mi14:06:022:42:4812:2511:26
16:45
#28050
25K
15.53 mi14:45:163:22:0213:0039:14
16:11
#28205
30K
18.64 mi15:32:264:09:1213:2247:10
15:11
#28235
20M
20.00 mi15:52:104:28:5613:2719:44
14:31
#28219
21M
21.00 mi16:07:134:43:5913:3115:03
15:03
#28193
35K
21.75 mi16:17:534:54:3913:3310:40
14:15
#28192
23M
23.00 mi16:37:145:14:0013:3919:21
15:27
#28211
24M
24.00 mi16:51:385:28:2413:4114:24
14:24
#28205
40K
24.85 mi17:04:065:40:5213:4312:28
14:35
#28196
25.2M
25.20 mi17:09:245:46:1013:445:18
15:22
#28191
Finish
26.22 mi17:23:396:00:2513:4514:15
13:59
#28200
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi25656150311503127742(Top 98%)15847(Top 98%)15847(Top 281%)
10K6.21 mi3.10 mi26307-65115306-27515306-27526758(Top 94%)15483(Top 96%)15483(Top 274%)
15K9.32 mi3.11 mi27062-75515597-29115597-29127742(Top 98%)15847(Top 98%)15847(Top 281%)
20K12.43 mi3.11 mi27932-87015930-33315930-33328379(Top 100%)16089(Top 100%)16089(Top 285%)
Half13.11 mi0.68 mi28050-11815972-4215972-4228388(Top 100%)16098(Top 100%)16098(Top 285%)
25K15.53 mi2.42 mi28205-15516022-5016022-5028350(Top 100%)16073(Top 100%)16073(Top 285%)
30K18.64 mi3.11 mi28235-3016029-716029-728099(Top 99%)15931(Top 99%)15931(Top 282%)
20M20.00 mi1.36 mi28219+1616023+616023+627648(Top 97%)15687(Top 97%)15687(Top 278%)
21M21.00 mi1.00 mi28193+2616007+1616007+1627198(Top 96%)15459(Top 96%)15459(Top 274%)
35K21.75 mi0.75 mi28192+116006+116006+127815(Top 98%)15732(Top 98%)15732(Top 279%)
23M23.00 mi1.25 mi28211-1916010-416010-428052(Top 99%)15873(Top 99%)15873(Top 281%)
24M24.00 mi1.00 mi28205+616002+816002+827834(Top 98%)15727(Top 98%)15727(Top 279%)
40K24.85 mi0.85 mi28196+915996+615996+627563(Top 97%)15594(Top 97%)15594(Top 276%)
25.2M25.20 mi0.35 mi28191+515994+215994+227376(Top 96%)15472(Top 96%)15472(Top 274%)
Finish26.22 mi1.02 mi28200-915998-415998-428042(Top 99%)15868(Top 99%)15868(Top 281%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 98%
×21story building
+97ft-345ft

Overall

27742

Males

15847

M18-39

15847

5K→10K

3.1 - 6.2 mi

Top 94%
×5story building
+79ft-138ft

Overall

26758

Males

15483

M18-39

15483

10K→15K

6.2 - 9.3 mi

Top 98%
×3story building
+67ft-78ft

Overall

27742

Males

15847

M18-39

15847

15K→20K

9.3 - 12.4 mi

Top 100%
×5story building
+106ft-86ft

Overall

28379

Males

16089

M18-39

16089

20K→Half

12.4 - 13.1 mi

Top 100%
×2story building
+19ft-37ft

Overall

28388

Males

16098

M18-39

16098

Half→25K

13.1 - 15.5 mi

Top 100%
×4story building
+66ft-88ft

Overall

28350

Males

16073

M18-39

16073

25K→30K

15.5 - 18.6 mi

Top 99%
×9story building
+181ft-148ft

Overall

28099

Males

15931

M18-39

15931

30K→20M

18.6 - 20.0 mi

Top 97%
×5story building
+64ft-50ft

Overall

27648

Males

15687

M18-39

15687

20M→21M

20.0 - 21.0 mi

Top 96%
×8story building
+106ft-24ft

Overall

27198

Males

15459

M18-39

15459

21M→35K

21.0 - 21.8 mi

Top 98%
×7story building
+17ft-86ft

Overall

27815

Males

15732

M18-39

15732

35K→23M

21.8 - 23.0 mi

Top 99%
×5story building
+23ft-63ft

Overall

28052

Males

15873

M18-39

15873

23M→24M

23.0 - 24.0 mi

Top 98%
×6story building
+12ft-82ft

Overall

27834

Males

15727

M18-39

15727

24M→40K

24.0 - 24.9 mi

Top 97%
×1story
+6ft-20ft

Overall

27563

Males

15594

M18-39

15594

40K→25.2M

24.9 - 25.2 mi

Top 96%
×1story
+13ft-16ft

Overall

27376

Males

15472

M18-39

15472

25.2M→Finish

25.2 - 26.2 mi

Top 99%
×2story building
+22ft-21ft

Overall

28042

Males

15868

M18-39

15868

Passing Analysis

Category:
Athletes Passed
172
Passed By
2716
Net Change
-2544
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25656
5K → 10K37688-651#25656#26307
10K → 15K9764-755#26307#27062
15K → 20K2872-870#27062#27932
20K → Half1119-118#27932#28050
Half → 25K5160-155#28050#28205
25K → 30K1848-30#28205#28235
30K → 20M204+16#28235#28219
20M → 21M271+26#28219#28193
21M → 35K87+1#28193#28192
35K → 23M423-19#28192#28211
23M → 24M148+6#28211#28205
24M → 40K156+9#28205#28196
40K → 25.2M50+5#28196#28191
25.2M → Finish716-9#28191#28200
TOTALS1722716-2544
📊

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