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BOSTON MARATHON 2023

Ben Coffman

Bib: 4446•M

AE

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 23%
Gender (Male)
#0 / 15176
Top 36%
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
20:56
Rank: #4021
Start → 5K
20:56 | 6:44/mi
10K· 6.21 mi
41:22
Rank: #3596 (+425)
5K → 10K
20:26 | 6:35/mi
15K· 9.32 mi
1:01:49
Rank: #3435 (+161)
10K → 15K
20:27 | 6:35/mi
20K· 12.43 mi
1:22:25
Rank: #3321 (+114)
15K → 20K
20:36 | 6:38/mi
Half· 13.11 mi
1:26:55
Rank: #3322 (-1)
20K → Half
4:30 | 6:36/mi
25K· 15.53 mi
1:43:27
Rank: #3421 (-99)
Half → 25K
16:32 | 6:49/mi
30K· 18.64 mi
2:05:25
Rank: #3674 (-253)
25K → 30K
21:58 | 7:04/mi
20M
2:17:15
Rank: #4695 (-1021)
30K → 20M
11:50 | 8:42/mi
21M
2:25:17
Rank: #4866 (-171)
20M → 21M
8:02 | 8:02/mi
35K· 21.75 mi
2:30:53
Rank: #4987 (-121)
21M → 35K
5:36 | 7:29/mi
23M
2:40:52
Rank: #5191 (-204)
35K → 23M
9:59 | 7:58/mi
24M
2:49:05
Rank: #5419 (-228)
23M → 24M
8:13 | 8:13/mi
40K· 24.85 mi
2:56:45
Rank: #5710 (-291)
24M → 40K
7:40 | 8:58/mi
25.2M
3:00:01
Rank: #5815 (-105)
40K → 25.2M
3:16 | 9:28/mi
Finish· 26.22 mi
3:08:53
Rank: #6157 (-342)
25.2M → Finish
8:52 | 8:42/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:55
Pace6:38 /mi
2nd Half
Distance13.11 mi
Time1:41:58
Pace7:47 /mi
📊Positive Split: 17.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:2420:566:4420:56
6:44
-
10K
6.21 mi10:42:5041:226:3920:26
6:35
-0:09
15K
9.32 mi11:03:171:01:496:3820:27
6:35
0:00
20K
12.43 mi11:23:531:22:256:3820:36
6:38
+0:03
Half
13.11 mi11:28:231:26:556:384:30
6:36
-0:02
25K
15.53 mi11:44:551:43:276:4016:32
6:49
+0:13
30K
18.64 mi12:06:532:05:256:4421:58
7:04
+0:15
20M
20.00 mi12:18:432:17:156:5211:50
8:42
+1:38
21M
21.00 mi12:26:452:25:176:558:02
8:02
-0:40
35K
21.75 mi12:32:212:30:536:565:36
7:29
-0:33
23M
23.00 mi12:42:202:40:527:009:59
7:58
+0:29
24M
24.00 mi12:50:332:49:057:038:13
8:13
+0:15
40K
24.85 mi12:58:132:56:457:077:40
8:58
+0:45
25.2M
25.20 mi13:01:293:00:017:093:16
9:28
+0:30
Finish
26.22 mi13:10:213:08:537:138:52
8:42
-0:46

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

6:35 /mi

Average Pace

7:13 /mi

Slowest Pace

9:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:43:27

55% of race

Time at Steady Pace

37:33

20% of race

Time at Slower Pace

47:53

25% of race

Average Pace: 7:12 /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 mi10:22:2420:566:4420:56
6:44
#4021
10K
6.21 mi10:42:5041:226:3920:26
6:35
#3596
15K
9.32 mi11:03:171:01:496:3820:27
6:35
#3435
20K
12.43 mi11:23:531:22:256:3820:36
6:38
#3321
Half
13.11 mi11:28:231:26:556:384:30
6:36
#3322
25K
15.53 mi11:44:551:43:276:4016:32
6:49
#3421
30K
18.64 mi12:06:532:05:256:4421:58
7:04
#3674
20M
20.00 mi12:18:432:17:156:5211:50
8:42
#4695
21M
21.00 mi12:26:452:25:176:558:02
8:02
#4866
35K
21.75 mi12:32:212:30:536:565:36
7:29
#4987
23M
23.00 mi12:42:202:40:527:009:59
7:58
#5191
24M
24.00 mi12:50:332:49:057:038:13
8:13
#5419
40K
24.85 mi12:58:132:56:457:077:40
8:58
#5710
25.2M
25.20 mi13:01:293:00:017:093:16
9:28
#5815
Finish
26.22 mi13:10:213:08:537:138:52
8:42
#6157
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4021377437743175(Top 12%)3024(Top 20%)3024(Top 57%)
10K6.21 mi3.10 mi3596+4253394+3803394+3803330(Top 13%)3169(Top 21%)3169(Top 60%)
15K9.32 mi3.11 mi3435+1613254+1403254+1403175(Top 12%)3024(Top 20%)3024(Top 57%)
20K12.43 mi3.11 mi3321+1143157+973157+973062(Top 12%)2917(Top 19%)2917(Top 55%)
Half13.11 mi0.68 mi3322-13160-33160-33461(Top 13%)3292(Top 22%)3292(Top 62%)
25K15.53 mi2.42 mi3421-993250-903250-904335(Top 16%)4051(Top 27%)4051(Top 77%)
30K18.64 mi3.11 mi3674-2533473-2233473-2234784(Top 18%)4413(Top 29%)4413(Top 84%)
20M20.00 mi1.36 mi4695-10214378-9054378-90514870(Top 56%)9927(Top 65%)9927(Top 188%)
21M21.00 mi1.00 mi4866-1714521-1434521-1437516(Top 28%)6184(Top 41%)6184(Top 117%)
35K21.75 mi0.75 mi4987-1214613-924613-928375(Top 31%)6706(Top 44%)6706(Top 127%)
23M23.00 mi1.25 mi5191-2044772-1594772-1599531(Top 36%)7235(Top 48%)7235(Top 137%)
24M24.00 mi1.00 mi5419-2284961-1894961-18912672(Top 48%)8687(Top 57%)8687(Top 164%)
40K24.85 mi0.85 mi5710-2915175-2145175-21415924(Top 60%)10085(Top 66%)10085(Top 191%)
25.2M25.20 mi0.35 mi5815-1055253-785253-7814958(Top 56%)9634(Top 63%)9634(Top 182%)
Finish26.22 mi1.02 mi6157-3425498-2455498-24516451(Top 62%)10348(Top 68%)10348(Top 196%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3175

Males

3024

M18-39

3024

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3330

Males

3169

M18-39

3169

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3175

Males

3024

M18-39

3024

15K→20K

9.3 - 12.4 mi

Top 12%
×5stories
+106ft-86ft

Overall

3062

Males

2917

M18-39

2917

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3461

Males

3292

M18-39

3292

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4335

Males

4051

M18-39

4051

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

4784

Males

4413

M18-39

4413

30K→20M

18.6 - 20.0 mi

Top 56%
×5stories
+64ft-50ft

Overall

14870

Males

9927

M18-39

9927

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

7516

Males

6184

M18-39

6184

21M→35K

21.0 - 21.8 mi

Top 31%
×7stories
+17ft-86ft

Overall

8375

Males

6706

M18-39

6706

35K→23M

21.8 - 23.0 mi

Top 36%
×5stories
+23ft-63ft

Overall

9531

Males

7235

M18-39

7235

23M→24M

23.0 - 24.0 mi

Top 48%
×6stories
+12ft-82ft

Overall

12672

Males

8687

M18-39

8687

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

15924

Males

10085

M18-39

10085

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

14958

Males

9634

M18-39

9634

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2stories
+22ft-21ft

Overall

16451

Males

10348

M18-39

10348

Passing Analysis

Category:
Athletes Passed
1029
Passed By
3165
Net Change
-2136
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4021
5K → 10K49570+425#4021#3596
10K → 15K19837+161#3596#3435
15K → 20K14228+114#3435#3321
20K → Half2122-1#3321#3322
Half → 25K44143-99#3322#3421
25K → 30K39292-253#3421#3674
30K → 20M21023-1021#3674#4695
20M → 21M19190-171#4695#4866
21M → 35K17138-121#4866#4987
35K → 23M24228-204#4987#5191
23M → 24M11239-228#5191#5419
24M → 40K7298-291#5419#5710
40K → 25.2M4109-105#5710#5815
25.2M → Finish6348-342#5815#6157
TOTALS10293165-2136
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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