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BOSTON MARATHON 2023

David Marthy

Bib: 4618•M

NC

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 12%
Gender (Male)
#0 / 15176
Top 20%
Division (M18-39)
#0 / 5285
Top 43%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:11
Rank: #4830
Start → 5K
21:11 | 6:49/mi
10K· 6.21 mi
41:50
Rank: #4295 (+535)
5K → 10K
20:39 | 6:39/mi
15K· 9.32 mi
1:02:14
Rank: #3781 (+514)
10K → 15K
20:24 | 6:34/mi
20K· 12.43 mi
1:22:44
Rank: #3509 (+272)
15K → 20K
20:30 | 6:36/mi
Half· 13.11 mi
1:27:06
Rank: #3425 (+84)
20K → Half
4:22 | 6:24/mi
25K· 15.53 mi
1:42:52
Rank: #3148 (+277)
Half → 25K
15:46 | 6:30/mi
30K· 18.64 mi
2:03:42
Rank: #2948 (+200)
25K → 30K
20:50 | 6:42/mi
20M
2:12:53
Rank: #2897 (+51)
30K → 20M
9:11 | 6:45/mi
21M
2:20:04
Rank: #2876 (+21)
20M → 21M
7:11 | 7:11/mi
35K· 21.75 mi
2:24:59
Rank: #2861 (+15)
21M → 35K
4:55 | 6:34/mi
23M
2:33:47
Rank: #2892 (-31)
35K → 23M
8:48 | 7:02/mi
24M
2:40:41
Rank: #2940 (-48)
23M → 24M
6:54 | 6:54/mi
40K· 24.85 mi
2:47:02
Rank: #3048 (-108)
24M → 40K
6:21 | 7:26/mi
25.2M
2:49:48
Rank: #3102 (-54)
40K → 25.2M
2:46 | 8:01/mi
Finish· 26.22 mi
2:57:07
Rank: #3224 (-122)
25.2M → Finish
7:19 | 7:11/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:06
Pace6:39 /mi
2nd Half
Distance13.11 mi
Time1:30:01
Pace6:52 /mi
📊Positive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:1121:116:4921:11
6:49
-
10K
6.21 mi10:43:5041:506:4420:39
6:39
-0:10
15K
9.32 mi11:04:141:02:146:4120:24
6:34
-0:05
20K
12.43 mi11:24:441:22:446:3920:30
6:36
+0:02
Half
13.11 mi11:29:061:27:066:394:22
6:24
-0:12
25K
15.53 mi11:44:521:42:526:3715:46
6:30
+0:06
30K
18.64 mi12:05:422:03:426:3820:50
6:42
+0:12
20M
20.00 mi12:14:532:12:536:399:11
6:45
+0:03
21M
21.00 mi12:22:042:20:046:407:11
7:11
+0:26
35K
21.75 mi12:26:592:24:596:404:55
6:34
-0:37
23M
23.00 mi12:35:472:33:476:418:48
7:02
+0:28
24M
24.00 mi12:42:412:40:416:426:54
6:54
-0:08
40K
24.85 mi12:49:022:47:026:436:21
7:26
+0:32
25.2M
25.20 mi12:51:482:49:486:442:46
8:01
+0:35
Finish
26.22 mi12:59:072:57:076:467:19
7:11
-0:50

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

6:24 /mi

Average Pace

6:46 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

20:08

11% of race

Time at Steady Pace

2:04:34

70% of race

Time at Slower Pace

32:25

18% of race

Average Pace: 6:45 /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 mi10:23:1121:116:4921:11
6:49
#4830
10K
6.21 mi10:43:5041:506:4420:39
6:39
#4295
15K
9.32 mi11:04:141:02:146:4120:24
6:34
#3781
20K
12.43 mi11:24:441:22:446:3920:30
6:36
#3509
Half
13.11 mi11:29:061:27:066:394:22
6:24
#3425
25K
15.53 mi11:44:521:42:526:3715:46
6:30
#3148
30K
18.64 mi12:05:422:03:426:3820:50
6:42
#2948
20M
20.00 mi12:14:532:12:536:399:11
6:45
#2897
21M
21.00 mi12:22:042:20:046:407:11
7:11
#2876
35K
21.75 mi12:26:592:24:596:404:55
6:34
#2861
23M
23.00 mi12:35:472:33:476:418:48
7:02
#2892
24M
24.00 mi12:42:412:40:416:426:54
6:54
#2940
40K
24.85 mi12:49:022:47:026:436:21
7:26
#3048
25.2M
25.20 mi12:51:482:49:486:442:46
8:01
#3102
Finish
26.22 mi12:59:072:57:076:467:19
7:11
#3224
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4830448944893036(Top 11%)2895(Top 19%)2895(Top 55%)
10K6.21 mi3.10 mi4295+5354024+4654024+4653853(Top 14%)3630(Top 24%)3630(Top 69%)
15K9.32 mi3.11 mi3781+5143568+4563568+4563036(Top 11%)2895(Top 19%)2895(Top 55%)
20K12.43 mi3.11 mi3509+2723326+2423326+2422842(Top 11%)2716(Top 18%)2716(Top 51%)
Half13.11 mi0.68 mi3425+843249+773249+772262(Top 8%)2172(Top 14%)2172(Top 41%)
25K15.53 mi2.42 mi3148+2772997+2522997+2522189(Top 8%)2100(Top 14%)2100(Top 40%)
30K18.64 mi3.11 mi2948+2002817+1802817+1802431(Top 9%)2315(Top 15%)2315(Top 44%)
20M20.00 mi1.36 mi2897+512768+492768+492583(Top 10%)2450(Top 16%)2450(Top 46%)
21M21.00 mi1.00 mi2876+212747+212747+212999(Top 11%)2810(Top 19%)2810(Top 53%)
35K21.75 mi0.75 mi2861+152728+192728+192850(Top 11%)2677(Top 18%)2677(Top 51%)
23M23.00 mi1.25 mi2892-312752-242752-243909(Top 15%)3598(Top 24%)3598(Top 68%)
24M24.00 mi1.00 mi2940-482795-432795-434138(Top 16%)3764(Top 25%)3764(Top 71%)
40K24.85 mi0.85 mi3048-1082888-932888-936197(Top 23%)5132(Top 34%)5132(Top 97%)
25.2M25.20 mi0.35 mi3102-542938-502938-506513(Top 24%)5239(Top 35%)5239(Top 99%)
Finish26.22 mi1.02 mi3224-1223050-1123050-1126243(Top 23%)5082(Top 33%)5082(Top 96%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 11%
×21stories
+97ft-345ft

Overall

3036

Males

2895

M18-39

2895

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

3853

Males

3630

M18-39

3630

10K→15K

6.2 - 9.3 mi

Top 11%
×3stories
+67ft-78ft

Overall

3036

Males

2895

M18-39

2895

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

2842

Males

2716

M18-39

2716

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2262

Males

2172

M18-39

2172

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2189

Males

2100

M18-39

2100

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2431

Males

2315

M18-39

2315

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2583

Males

2450

M18-39

2450

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

2999

Males

2810

M18-39

2810

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

2850

Males

2677

M18-39

2677

35K→23M

21.8 - 23.0 mi

Top 15%
×5stories
+23ft-63ft

Overall

3909

Males

3598

M18-39

3598

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4138

Males

3764

M18-39

3764

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6197

Males

5132

M18-39

5132

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6513

Males

5239

M18-39

5239

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2stories
+22ft-21ft

Overall

6243

Males

5082

M18-39

5082

Passing Analysis

Category:
Athletes Passed
2217
Passed By
611
Net Change
+1606
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4830
5K → 10K57540+535#4830#4295
10K → 15K5228+514#4295#3781
15K → 20K2797+272#3781#3509
20K → Half840+84#3509#3425
Half → 25K2792+277#3425#3148
25K → 30K2088+200#3148#2948
30K → 20M6514+51#2948#2897
20M → 21M5635+21#2897#2876
21M → 35K3924+15#2876#2861
35K → 23M4677-31#2861#2892
23M → 24M2371-48#2892#2940
24M → 40K20128-108#2940#3048
40K → 25.2M660-54#3048#3102
25.2M → Finish15137-122#3102#3224
TOTALS2217611+1606
📊

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