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BOSTON MARATHON 2025

Justin Foster

Bib: 30189•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

Start
0:00:00
Race begins
5K· 3.11 mi
34:27
Rank: #27648
Start → 5K
34:27 | 11:05/mi
10K· 6.21 mi
1:09:43
Rank: #27561 (+87)
5K → 10K
35:16 | 11:21/mi
15K· 9.32 mi
1:45:37
Rank: #27470 (+91)
10K → 15K
35:54 | 11:33/mi
20K· 12.43 mi
2:24:58
Rank: #27532 (-62)
15K → 20K
39:21 | 12:40/mi
Half· 13.11 mi
2:34:04
Rank: #27601 (-69)
20K → Half
9:06 | 13:20/mi
25K· 15.53 mi
3:04:38
Rank: #27509 (+92)
Half → 25K
30:34 | 12:36/mi
30K· 18.64 mi
3:46:35
Rank: #27447 (+62)
25K → 30K
41:57 | 13:30/mi
20M
4:04:36
Rank: #27395 (+52)
30K → 20M
18:01 | 13:15/mi
21M
4:17:43
Rank: #27327 (+68)
20M → 21M
13:07 | 13:07/mi
35K· 21.75 mi
4:26:11
Rank: #27270 (+57)
21M → 35K
8:28 | 11:19/mi
23M
4:41:05
Rank: #27169 (+101)
35K → 23M
14:54 | 11:54/mi
24M
4:52:55
Rank: #27133 (+36)
23M → 24M
11:50 | 11:50/mi
40K· 24.85 mi
5:03:09
Rank: #27077 (+56)
24M → 40K
10:14 | 11:58/mi
25.2M
5:07:25
Rank: #27045 (+32)
40K → 25.2M
4:16 | 12:22/mi
Finish· 26.22 mi
5:18:12
Rank: #26979 (+66)
25.2M → Finish
10:47 | 10:35/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:34:04
Pace11:45 /mi
2nd Half
Distance13.11 mi
Time2:44:08
Pace12:31 /mi
📊Positive Split: 6.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:58:3734:2711:0534:27
11:05
-
10K
6.21 mi12:33:531:09:4311:1335:16
11:21
+0:16
15K
9.32 mi13:09:471:45:3711:2035:54
11:33
+0:12
20K
12.43 mi13:49:082:24:5811:4039:21
12:40
+1:07
Half
13.11 mi13:58:142:34:0411:459:06
13:20
+0:40
25K
15.53 mi14:28:483:04:3811:5330:34
12:36
-0:44
30K
18.64 mi15:10:453:46:3512:0941:57
13:30
+0:54
20M
20.00 mi15:28:464:04:3612:1418:01
13:15
-0:15
21M
21.00 mi15:41:534:17:4312:1613:07
13:07
-0:08
35K
21.75 mi15:50:214:26:1112:148:28
11:19
-1:48
23M
23.00 mi16:05:154:41:0512:1314:54
11:54
+0:35
24M
24.00 mi16:17:054:52:5512:1211:50
11:50
-0:04
40K
24.85 mi16:27:195:03:0912:1210:14
11:58
+0:08
25.2M
25.20 mi16:31:355:07:2512:124:16
12:22
+0:24
Finish
26.22 mi16:42:225:18:1212:0910:47
10:35
-1:47

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

10:35 /mi

Average Pace

12:09 /mi

Slowest Pace

13:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:28:58

28% of race

Time at Steady Pace

1:17:08

24% of race

Time at Slower Pace

2:32:06

48% of race

Average Pace: 12:08 /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 mi11:58:3734:2711:0534:27
11:05
#27648
10K
6.21 mi12:33:531:09:4311:1335:16
11:21
#27561
15K
9.32 mi13:09:471:45:3711:2035:54
11:33
#27470
20K
12.43 mi13:49:082:24:5811:4039:21
12:40
#27532
Half
13.11 mi13:58:142:34:0411:459:06
13:20
#27601
25K
15.53 mi14:28:483:04:3811:5330:34
12:36
#27509
30K
18.64 mi15:10:453:46:3512:0941:57
13:30
#27447
20M
20.00 mi15:28:464:04:3612:1418:01
13:15
#27395
21M
21.00 mi15:41:534:17:4312:1613:07
13:07
#27327
35K
21.75 mi15:50:214:26:1112:148:28
11:19
#27270
23M
23.00 mi16:05:154:41:0512:1314:54
11:54
#27169
24M
24.00 mi16:17:054:52:5512:1211:50
11:50
#27133
40K
24.85 mi16:27:195:03:0912:1210:14
11:58
#27077
25.2M
25.20 mi16:31:355:07:2512:124:16
12:22
#27045
Finish
26.22 mi16:42:225:18:1212:0910:47
10:35
#26979
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi27648158451584527275(Top 96%)15671(Top 97%)15671(Top 278%)
10K6.21 mi3.10 mi27561+8715815+3015815+3027449(Top 97%)15747(Top 98%)15747(Top 279%)
15K9.32 mi3.11 mi27470+9115763+5215763+5227275(Top 96%)15671(Top 97%)15671(Top 278%)
20K12.43 mi3.11 mi27532-6215780-1715780-1727637(Top 97%)15788(Top 98%)15788(Top 280%)
Half13.11 mi0.68 mi27601-6915800-2015800-2028121(Top 99%)15971(Top 99%)15971(Top 283%)
25K15.53 mi2.42 mi27509+9215750+5015750+5027007(Top 95%)15509(Top 96%)15509(Top 275%)
30K18.64 mi3.11 mi27447+6215707+4315707+4327145(Top 96%)15496(Top 96%)15496(Top 275%)
20M20.00 mi1.36 mi27395+5215680+2715680+2726686(Top 94%)15225(Top 95%)15225(Top 270%)
21M21.00 mi1.00 mi27327+6815649+3115649+3125207(Top 89%)14472(Top 90%)14472(Top 257%)
35K21.75 mi0.75 mi27270+5715618+3115618+3124801(Top 87%)14268(Top 89%)14268(Top 253%)
23M23.00 mi1.25 mi27169+10115574+4415574+4424974(Top 88%)14327(Top 89%)14327(Top 254%)
24M24.00 mi1.00 mi27133+3615551+2315551+2325465(Top 90%)14541(Top 90%)14541(Top 258%)
40K24.85 mi0.85 mi27077+5615523+2815523+2824888(Top 88%)14204(Top 88%)14204(Top 252%)
25.2M25.20 mi0.35 mi27045+3215503+2015503+2023957(Top 84%)13759(Top 85%)13759(Top 244%)
Finish26.22 mi1.02 mi26979+6615473+3015473+3024467(Top 86%)14021(Top 87%)14021(Top 249%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×21stories
+97ft-345ft

Overall

27275

Males

15671

M18-39

15671

5K→10K

3.1 - 6.2 mi

Top 97%
×5stories
+79ft-138ft

Overall

27449

Males

15747

M18-39

15747

10K→15K

6.2 - 9.3 mi

Top 96%
×3stories
+67ft-78ft

Overall

27275

Males

15671

M18-39

15671

15K→20K

9.3 - 12.4 mi

Top 97%
×5stories
+106ft-86ft

Overall

27637

Males

15788

M18-39

15788

20K→Half

12.4 - 13.1 mi

Top 99%
×2stories
+19ft-37ft

Overall

28121

Males

15971

M18-39

15971

Half→25K

13.1 - 15.5 mi

Top 95%
×4stories
+66ft-88ft

Overall

27007

Males

15509

M18-39

15509

25K→30K

15.5 - 18.6 mi

Top 96%
×9stories
+181ft-148ft

Overall

27145

Males

15496

M18-39

15496

30K→20M

18.6 - 20.0 mi

Top 94%
×5stories
+64ft-50ft

Overall

26686

Males

15225

M18-39

15225

20M→21M

20.0 - 21.0 mi

Top 89%
×8stories
+106ft-24ft

Overall

25207

Males

14472

M18-39

14472

21M→35K

21.0 - 21.8 mi

Top 87%
×7stories
+17ft-86ft

Overall

24801

Males

14268

M18-39

14268

35K→23M

21.8 - 23.0 mi

Top 88%
×5stories
+23ft-63ft

Overall

24974

Males

14327

M18-39

14327

23M→24M

23.0 - 24.0 mi

Top 90%
×6stories
+12ft-82ft

Overall

25465

Males

14541

M18-39

14541

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

24888

Males

14204

M18-39

14204

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

23957

Males

13759

M18-39

13759

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2stories
+22ft-21ft

Overall

24467

Males

14021

M18-39

14021

Passing Analysis

Category:
Athletes Passed
1039
Passed By
370
Net Change
+669
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27648
5K → 10K14861+87#27648#27561
10K → 15K13645+91#27561#27470
15K → 20K53115-62#27470#27532
20K → Half372-69#27532#27601
Half → 25K11018+92#27601#27509
25K → 30K9432+62#27509#27447
30K → 20M619+52#27447#27395
20M → 21M724+68#27395#27327
21M → 35K592+57#27327#27270
35K → 23M1021+101#27270#27169
23M → 24M459+36#27169#27133
24M → 40K560+56#27133#27077
40K → 25.2M331+32#27077#27045
25.2M → Finish671+66#27045#26979
TOTALS1039370+669
📊

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