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BOSTON MARATHON 2025

Jason Shinkwin

Bib: 30245•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
30:16
Rank: #24949
Start → 5K
30:16 | 9:45/mi
10K· 6.21 mi
1:00:58
Rank: #25001 (-52)
5K → 10K
30:42 | 9:53/mi
15K· 9.32 mi
1:31:53
Rank: #24952 (+49)
10K → 15K
30:55 | 9:57/mi
20K· 12.43 mi
2:03:31
Rank: #24855 (+97)
15K → 20K
31:38 | 10:11/mi
Half· 13.11 mi
2:10:23
Rank: #24853 (+2)
20K → Half
6:52 | 10:04/mi
25K· 15.53 mi
2:35:44
Rank: #24769 (+84)
Half → 25K
25:21 | 10:27/mi
30K· 18.64 mi
3:11:40
Rank: #24830 (-61)
25K → 30K
35:56 | 11:34/mi
20M
3:29:29
Rank: #25024 (-194)
30K → 20M
17:49 | 13:07/mi
21M
3:43:18
Rank: #25113 (-89)
20M → 21M
13:49 | 13:49/mi
35K· 21.75 mi
3:51:44
Rank: #25109 (+4)
21M → 35K
8:26 | 11:16/mi
23M
4:05:51
Rank: #25058 (+51)
35K → 23M
14:07 | 11:16/mi
24M
4:18:00
Rank: #25087 (-29)
23M → 24M
12:09 | 12:09/mi
40K· 24.85 mi
4:29:01
Rank: #25140 (-53)
24M → 40K
11:01 | 12:53/mi
25.2M
4:33:19
Rank: #25135 (+5)
40K → 25.2M
4:18 | 12:28/mi
Finish· 26.22 mi
4:44:06
Rank: #25125 (+10)
25.2M → Finish
10:47 | 10:35/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:10:23
Pace9:57 /mi
2nd Half
Distance13.11 mi
Time2:33:43
Pace11:44 /mi
📊Positive Split: 17.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:2330:169:4530:16
9:45
-
10K
6.21 mi12:22:051:00:589:4930:42
9:53
+0:08
15K
9.32 mi12:53:001:31:539:5130:55
9:57
+0:04
20K
12.43 mi13:24:382:03:319:5631:38
10:11
+0:14
Half
13.11 mi13:31:302:10:239:576:52
10:04
-0:07
25K
15.53 mi13:56:512:35:4410:0225:21
10:27
+0:23
30K
18.64 mi14:32:473:11:4010:1735:56
11:34
+1:07
20M
20.00 mi14:50:363:29:2910:2817:49
13:07
+1:33
21M
21.00 mi15:04:253:43:1810:3813:49
13:49
+0:42
35K
21.75 mi15:12:513:51:4410:398:26
11:16
-2:33
23M
23.00 mi15:26:584:05:5110:4114:07
11:16
0:00
24M
24.00 mi15:39:074:18:0010:4512:09
12:09
+0:53
40K
24.85 mi15:50:084:29:0110:4911:01
12:53
+0:44
25.2M
25.20 mi15:54:264:33:1910:514:18
12:28
-0:25
Finish
26.22 mi16:05:134:44:0610:5110:47
10:35
-1:53

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

9:45 /mi

Average Pace

10:51 /mi

Slowest Pace

13:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46:31

59% of race

Time at Steady Pace

58:29

21% of race

Time at Slower Pace

59:06

21% of race

Average Pace: 10:50 /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 mi11:51:2330:169:4530:16
9:45
#24949
10K
6.21 mi12:22:051:00:589:4930:42
9:53
#25001
15K
9.32 mi12:53:001:31:539:5130:55
9:57
#24952
20K
12.43 mi13:24:382:03:319:5631:38
10:11
#24855
Half
13.11 mi13:31:302:10:239:576:52
10:04
#24853
25K
15.53 mi13:56:512:35:4410:0225:21
10:27
#24769
30K
18.64 mi14:32:473:11:4010:1735:56
11:34
#24830
20M
20.00 mi14:50:363:29:2910:2817:49
13:07
#25024
21M
21.00 mi15:04:253:43:1810:3813:49
13:49
#25113
35K
21.75 mi15:12:513:51:4410:398:26
11:16
#25109
23M
23.00 mi15:26:584:05:5110:4114:07
11:16
#25058
24M
24.00 mi15:39:074:18:0010:4512:09
12:09
#25087
40K
24.85 mi15:50:084:29:0110:4911:01
12:53
#25140
25.2M
25.20 mi15:54:264:33:1910:514:18
12:28
#25135
Finish
26.22 mi16:05:134:44:0610:5110:47
10:35
#25125
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi24949147031470324906(Top 88%)14676(Top 91%)14676(Top 260%)
10K6.21 mi3.10 mi25001-5214706-314706-325048(Top 88%)14725(Top 91%)14725(Top 261%)
15K9.32 mi3.11 mi24952+4914693+1314693+1324906(Top 88%)14676(Top 91%)14676(Top 260%)
20K12.43 mi3.11 mi24855+9714639+5414639+5424600(Top 87%)14487(Top 90%)14487(Top 257%)
Half13.11 mi0.68 mi24853+214635+414635+424948(Top 88%)14647(Top 91%)14647(Top 260%)
25K15.53 mi2.42 mi24769+8414575+6014575+6024283(Top 85%)14320(Top 89%)14320(Top 254%)
30K18.64 mi3.11 mi24830-6114580-514580-524945(Top 88%)14505(Top 90%)14505(Top 257%)
20M20.00 mi1.36 mi25024-19414652-7214652-7226551(Top 93%)15168(Top 94%)15168(Top 269%)
21M21.00 mi1.00 mi25113-8914681-2914681-2926029(Top 92%)14900(Top 93%)14900(Top 264%)
35K21.75 mi0.75 mi25109+414664+1714664+1724725(Top 87%)14225(Top 88%)14225(Top 252%)
23M23.00 mi1.25 mi25058+5114630+3414630+3423834(Top 84%)13756(Top 85%)13756(Top 244%)
24M24.00 mi1.00 mi25087-2914636-614636-625843(Top 91%)14721(Top 91%)14721(Top 261%)
40K24.85 mi0.85 mi25140-5314653-1714653-1726180(Top 92%)14880(Top 92%)14880(Top 264%)
25.2M25.20 mi0.35 mi25135+514646+714646+724137(Top 85%)13840(Top 86%)13840(Top 245%)
Finish26.22 mi1.02 mi25125+1014635+1114635+1124462(Top 86%)14016(Top 87%)14016(Top 248%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21stories
+97ft-345ft

Overall

24906

Males

14676

M18-39

14676

5K→10K

3.1 - 6.2 mi

Top 88%
×5stories
+79ft-138ft

Overall

25048

Males

14725

M18-39

14725

10K→15K

6.2 - 9.3 mi

Top 88%
×3stories
+67ft-78ft

Overall

24906

Males

14676

M18-39

14676

15K→20K

9.3 - 12.4 mi

Top 87%
×5stories
+106ft-86ft

Overall

24600

Males

14487

M18-39

14487

20K→Half

12.4 - 13.1 mi

Top 88%
×2stories
+19ft-37ft

Overall

24948

Males

14647

M18-39

14647

Half→25K

13.1 - 15.5 mi

Top 85%
×4stories
+66ft-88ft

Overall

24283

Males

14320

M18-39

14320

25K→30K

15.5 - 18.6 mi

Top 88%
×9stories
+181ft-148ft

Overall

24945

Males

14505

M18-39

14505

30K→20M

18.6 - 20.0 mi

Top 93%
×5stories
+64ft-50ft

Overall

26551

Males

15168

M18-39

15168

20M→21M

20.0 - 21.0 mi

Top 92%
×8stories
+106ft-24ft

Overall

26029

Males

14900

M18-39

14900

21M→35K

21.0 - 21.8 mi

Top 87%
×7stories
+17ft-86ft

Overall

24725

Males

14225

M18-39

14225

35K→23M

21.8 - 23.0 mi

Top 84%
×5stories
+23ft-63ft

Overall

23834

Males

13756

M18-39

13756

23M→24M

23.0 - 24.0 mi

Top 91%
×6stories
+12ft-82ft

Overall

25843

Males

14721

M18-39

14721

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

26180

Males

14880

M18-39

14880

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

24137

Males

13840

M18-39

13840

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2stories
+22ft-21ft

Overall

24462

Males

14016

M18-39

14016

Passing Analysis

Category:
Athletes Passed
1012
Passed By
1188
Net Change
-176
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24949
5K → 10K166218-52#24949#25001
10K → 15K151102+49#25001#24952
15K → 20K18689+97#24952#24855
20K → Half3331+2#24855#24853
Half → 25K14763+84#24853#24769
25K → 30K121182-61#24769#24830
30K → 20M14208-194#24830#25024
20M → 21M20109-89#25024#25113
21M → 35K3127+4#25113#25109
35K → 23M6211+51#25109#25058
23M → 24M2352-29#25058#25087
24M → 40K1568-53#25087#25140
40K → 25.2M127+5#25140#25135
25.2M → Finish3121+10#25135#25125
TOTALS10121188-176
📊

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