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BOSTON MARATHON 2023

Colin Law

Bib: 3772•M

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 28%
Gender (Male)
#0 / 15176
Top 42%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:17
Rank: #7331
Start → 5K
22:17 | 7:10/mi
10K· 6.21 mi
44:15
Rank: #7248 (+83)
5K → 10K
21:58 | 7:04/mi
15K· 9.32 mi
1:06:12
Rank: #7123 (+125)
10K → 15K
21:57 | 7:04/mi
20K· 12.43 mi
1:29:16
Rank: #7423 (-300)
15K → 20K
23:04 | 7:25/mi
Half· 13.11 mi
1:34:04
Rank: #7377 (+46)
20K → Half
4:48 | 7:02/mi
25K· 15.53 mi
1:51:51
Rank: #7375 (+2)
Half → 25K
17:47 | 7:20/mi
30K· 18.64 mi
2:15:46
Rank: #7511 (-136)
25K → 30K
23:55 | 7:42/mi
20M
2:26:22
Rank: #7570 (-59)
30K → 20M
10:36 | 7:48/mi
21M
2:34:42
Rank: #7636 (-66)
20M → 21M
8:20 | 8:20/mi
35K· 21.75 mi
2:40:18
Rank: #7639 (-3)
21M → 35K
5:36 | 7:29/mi
23M
2:49:45
Rank: #7528 (+111)
35K → 23M
9:27 | 7:33/mi
24M
2:57:14
Rank: #7509 (+19)
23M → 24M
7:29 | 7:29/mi
40K· 24.85 mi
3:03:47
Rank: #7492 (+17)
24M → 40K
6:33 | 7:40/mi
25.2M
3:06:38
Rank: #7508 (-16)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:14:21
Rank: #7543 (-35)
25.2M → Finish
7:43 | 7:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:04
Pace7:11 /mi
2nd Half
Distance13.11 mi
Time1:40:17
Pace7:39 /mi
📊Positive Split: 6.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:3522:177:1022:17
7:10
-
10K
6.21 mi10:46:3344:157:0721:58
7:04
-0:06
15K
9.32 mi11:08:301:06:127:0621:57
7:04
0:00
20K
12.43 mi11:31:341:29:167:1123:04
7:25
+0:21
Half
13.11 mi11:36:221:34:047:114:48
7:02
-0:23
25K
15.53 mi11:54:091:51:517:1217:47
7:20
+0:18
30K
18.64 mi12:18:042:15:467:1723:55
7:42
+0:22
20M
20.00 mi12:28:402:26:227:1910:36
7:48
+0:06
21M
21.00 mi12:37:002:34:427:228:20
8:20
+0:32
35K
21.75 mi12:42:362:40:187:225:36
7:29
-0:51
23M
23.00 mi12:52:032:49:457:239:27
7:33
+0:04
24M
24.00 mi12:59:322:57:147:237:29
7:29
-0:04
40K
24.85 mi13:06:053:03:477:246:33
7:40
+0:11
25.2M
25.20 mi13:08:563:06:387:242:51
8:16
+0:36
Finish
26.22 mi13:16:393:14:217:257:43
7:34
-0:42

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

7:02 /mi

Average Pace

7:25 /mi

Slowest Pace

8:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:52:34

89% of race

Time at Steady Pace

13:27

7% of race

Time at Slower Pace

8:20

4% of race

Average Pace: 7:25 /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 mi10:24:3522:177:1022:17
7:10
#7331
10K
6.21 mi10:46:3344:157:0721:58
7:04
#7248
15K
9.32 mi11:08:301:06:127:0621:57
7:04
#7123
20K
12.43 mi11:31:341:29:167:1123:04
7:25
#7423
Half
13.11 mi11:36:221:34:047:114:48
7:02
#7377
25K
15.53 mi11:54:091:51:517:1217:47
7:20
#7375
30K
18.64 mi12:18:042:15:467:1723:55
7:42
#7511
20M
20.00 mi12:28:402:26:227:1910:36
7:48
#7570
21M
21.00 mi12:37:002:34:427:228:20
8:20
#7636
35K
21.75 mi12:42:362:40:187:225:36
7:29
#7639
23M
23.00 mi12:52:032:49:457:239:27
7:33
#7528
24M
24.00 mi12:59:322:57:147:237:29
7:29
#7509
40K
24.85 mi13:06:053:03:477:246:33
7:40
#7492
25.2M
25.20 mi13:08:563:06:387:242:51
8:16
#7508
Finish
26.22 mi13:16:393:14:217:257:43
7:34
#7543
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi7331652465246941(Top 26%)6203(Top 41%)6203(Top 117%)
10K6.21 mi3.10 mi7248+836440+846440+847246(Top 27%)6410(Top 42%)6410(Top 121%)
15K9.32 mi3.11 mi7123+1256346+946346+946941(Top 26%)6203(Top 41%)6203(Top 117%)
20K12.43 mi3.11 mi7423-3006554-2086554-2088691(Top 33%)7306(Top 48%)7306(Top 138%)
Half13.11 mi0.68 mi7377+466520+346520+346757(Top 25%)6064(Top 40%)6064(Top 115%)
25K15.53 mi2.42 mi7375+26510+106510+107501(Top 28%)6485(Top 43%)6485(Top 123%)
30K18.64 mi3.11 mi7511-1366560-506560-508616(Top 32%)7044(Top 46%)7044(Top 133%)
20M20.00 mi1.36 mi7570-596576-166576-168826(Top 33%)7085(Top 47%)7085(Top 134%)
21M21.00 mi1.00 mi7636-666607-316607-319393(Top 35%)7280(Top 48%)7280(Top 138%)
35K21.75 mi0.75 mi7639-36606+16606+18399(Top 32%)6730(Top 44%)6730(Top 127%)
23M23.00 mi1.25 mi7528+1116505+1016505+1016712(Top 25%)5643(Top 37%)5643(Top 107%)
24M24.00 mi1.00 mi7509+196470+356470+357570(Top 28%)6049(Top 40%)6049(Top 114%)
40K24.85 mi0.85 mi7492+176436+346436+347677(Top 29%)6041(Top 40%)6041(Top 114%)
25.2M25.20 mi0.35 mi7508-166441-56441-57994(Top 30%)6154(Top 41%)6154(Top 116%)
Finish26.22 mi1.02 mi7543-356445-46445-49056(Top 34%)6773(Top 45%)6773(Top 128%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21stories
+97ft-345ft

Overall

6941

Males

6203

M18-39

6203

5K→10K

3.1 - 6.2 mi

Top 27%
×5stories
+79ft-138ft

Overall

7246

Males

6410

M18-39

6410

10K→15K

6.2 - 9.3 mi

Top 26%
×3stories
+67ft-78ft

Overall

6941

Males

6203

M18-39

6203

15K→20K

9.3 - 12.4 mi

Top 33%
×5stories
+106ft-86ft

Overall

8691

Males

7306

M18-39

7306

20K→Half

12.4 - 13.1 mi

Top 25%
×2stories
+19ft-37ft

Overall

6757

Males

6064

M18-39

6064

Half→25K

13.1 - 15.5 mi

Top 28%
×4stories
+66ft-88ft

Overall

7501

Males

6485

M18-39

6485

25K→30K

15.5 - 18.6 mi

Top 32%
×9stories
+181ft-148ft

Overall

8616

Males

7044

M18-39

7044

30K→20M

18.6 - 20.0 mi

Top 33%
×5stories
+64ft-50ft

Overall

8826

Males

7085

M18-39

7085

20M→21M

20.0 - 21.0 mi

Top 35%
×8stories
+106ft-24ft

Overall

9393

Males

7280

M18-39

7280

21M→35K

21.0 - 21.8 mi

Top 32%
×7stories
+17ft-86ft

Overall

8399

Males

6730

M18-39

6730

35K→23M

21.8 - 23.0 mi

Top 25%
×5stories
+23ft-63ft

Overall

6712

Males

5643

M18-39

5643

23M→24M

23.0 - 24.0 mi

Top 28%
×6stories
+12ft-82ft

Overall

7570

Males

6049

M18-39

6049

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

7677

Males

6041

M18-39

6041

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

7994

Males

6154

M18-39

6154

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2stories
+22ft-21ft

Overall

9056

Males

6773

M18-39

6773

Passing Analysis

Category:
Athletes Passed
1206
Passed By
1418
Net Change
-212
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7331
5K → 10K263180+83#7331#7248
10K → 15K21085+125#7248#7123
15K → 20K42342-300#7123#7423
20K → Half548+46#7423#7377
Half → 25K8280+2#7377#7375
25K → 30K90226-136#7375#7511
30K → 20M55114-59#7511#7570
20M → 21M40106-66#7570#7636
21M → 35K3437-3#7636#7639
35K → 23M13928+111#7639#7528
23M → 24M6344+19#7528#7509
24M → 40K6952+17#7509#7492
40K → 25.2M1531-16#7492#7508
25.2M → Finish5085-35#7508#7543
TOTALS12061418-212
📊

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