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BOSTON MARATHON 2023

David Childs

Bib: 11985•M

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Top 34%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:30
Rank: #15513
Start → 5K
25:30 | 8:12/mi
10K· 6.21 mi
50:10
Rank: #14919 (+594)
5K → 10K
24:40 | 7:56/mi
15K· 9.32 mi
1:14:48
Rank: #14529 (+390)
10K → 15K
24:38 | 7:56/mi
20K· 12.43 mi
1:39:40
Rank: #14250 (+279)
15K → 20K
24:52 | 8:00/mi
Half· 13.11 mi
1:45:07
Rank: #14243 (+7)
20K → Half
5:27 | 7:59/mi
25K· 15.53 mi
2:04:47
Rank: #14127 (+116)
Half → 25K
19:40 | 8:07/mi
30K· 18.64 mi
2:32:02
Rank: #14494 (-367)
25K → 30K
27:15 | 8:46/mi
20M
2:44:13
Rank: #14638 (-144)
30K → 20M
12:11 | 8:58/mi
21M
2:53:36
Rank: #14669 (-31)
20M → 21M
9:23 | 9:23/mi
35K· 21.75 mi
3:00:20
Rank: #14790 (-121)
21M → 35K
6:44 | 9:00/mi
23M
3:12:11
Rank: #15022 (-232)
35K → 23M
11:51 | 9:28/mi
24M
3:21:28
Rank: #15167 (-145)
23M → 24M
9:17 | 9:17/mi
40K· 24.85 mi
3:29:26
Rank: #15304 (-137)
24M → 40K
7:58 | 9:19/mi
25.2M
3:32:49
Rank: #15315 (-11)
40K → 25.2M
3:23 | 9:49/mi
Finish· 26.22 mi
3:42:18
Rank: #15515 (-200)
25.2M → Finish
9:29 | 9:18/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:07
Pace8:01 /mi
2nd Half
Distance13.11 mi
Time1:57:11
Pace8:56 /mi
📊Positive Split: 11.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:2125:308:1225:30
8:12
-
10K
6.21 mi11:17:0150:108:0424:40
7:56
-0:16
15K
9.32 mi11:41:391:14:488:0224:38
7:56
0:00
20K
12.43 mi12:06:311:39:408:0124:52
8:00
+0:04
Half
13.11 mi12:11:581:45:078:015:27
7:59
-0:01
25K
15.53 mi12:31:382:04:478:0219:40
8:07
+0:08
30K
18.64 mi12:58:532:32:028:0927:15
8:46
+0:39
20M
20.00 mi13:11:042:44:138:1312:11
8:58
+0:12
21M
21.00 mi13:20:272:53:368:169:23
9:23
+0:25
35K
21.75 mi13:27:113:00:208:186:44
9:00
-0:23
23M
23.00 mi13:39:023:12:118:2111:51
9:28
+0:28
24M
24.00 mi13:48:193:21:288:249:17
9:17
-0:11
40K
24.85 mi13:56:173:29:268:267:58
9:19
+0:02
25.2M
25.20 mi13:59:403:32:498:273:23
9:49
+0:30
Finish
26.22 mi14:09:093:42:188:299:29
9:18
-0:31

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

7:56 /mi

Average Pace

8:29 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:04:47

56% of race

Time at Steady Pace

55:27

25% of race

Time at Slower Pace

42:04

19% of race

Average Pace: 8:29 /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 mi10:52:2125:308:1225:30
8:12
#15513
10K
6.21 mi11:17:0150:108:0424:40
7:56
#14919
15K
9.32 mi11:41:391:14:488:0224:38
7:56
#14529
20K
12.43 mi12:06:311:39:408:0124:52
8:00
#14250
Half
13.11 mi12:11:581:45:078:015:27
7:59
#14243
25K
15.53 mi12:31:382:04:478:0219:40
8:07
#14127
30K
18.64 mi12:58:532:32:028:0927:15
8:46
#14494
20M
20.00 mi13:11:042:44:138:1312:11
8:58
#14638
21M
21.00 mi13:20:272:53:368:169:23
9:23
#14669
35K
21.75 mi13:27:113:00:208:186:44
9:00
#14790
23M
23.00 mi13:39:023:12:118:2111:51
9:28
#15022
24M
24.00 mi13:48:193:21:288:249:17
9:17
#15167
40K
24.85 mi13:56:173:29:268:267:58
9:19
#15304
25.2M
25.20 mi13:59:403:32:498:273:23
9:49
#15315
Finish
26.22 mi14:09:093:42:188:299:29
9:18
#15515
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi15513105181051813800(Top 52%)9821(Top 65%)9821(Top 885%)
10K6.21 mi3.10 mi14919+59410297+22110297+22114319(Top 54%)10054(Top 66%)10054(Top 906%)
15K9.32 mi3.11 mi14529+39010141+15610141+15613800(Top 52%)9821(Top 65%)9821(Top 885%)
20K12.43 mi3.11 mi14250+27910004+13710004+13713454(Top 51%)9646(Top 64%)9646(Top 869%)
Half13.11 mi0.68 mi14243+710003+110003+114243(Top 54%)10015(Top 66%)10015(Top 902%)
25K15.53 mi2.42 mi14127+1169925+789925+7813578(Top 51%)9597(Top 63%)9597(Top 865%)
30K18.64 mi3.11 mi14494-36710030-10510030-10515877(Top 60%)10427(Top 69%)10427(Top 939%)
20M20.00 mi1.36 mi14638-14410074-4410074-4416333(Top 61%)10539(Top 69%)10539(Top 949%)
21M21.00 mi1.00 mi14669-3110060+1410060+1415381(Top 58%)10088(Top 66%)10088(Top 909%)
35K21.75 mi0.75 mi14790-12110095-3510095-3517884(Top 67%)11085(Top 73%)11085(Top 999%)
23M23.00 mi1.25 mi15022-23210151-5610151-5618172(Top 68%)11190(Top 74%)11190(Top 1008%)
24M24.00 mi1.00 mi15167-14510193-4210193-4218375(Top 69%)11252(Top 74%)11252(Top 1014%)
40K24.85 mi0.85 mi15304-13710222-2910222-2917571(Top 66%)10826(Top 71%)10826(Top 975%)
25.2M25.20 mi0.35 mi15315-1110215+710215+716522(Top 62%)10334(Top 68%)10334(Top 931%)
Finish26.22 mi1.02 mi15515-20010277-6210277-6219371(Top 73%)11686(Top 77%)11686(Top 1053%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21stories
+97ft-345ft

Overall

13800

Males

9821

M60-64

9821

5K→10K

3.1 - 6.2 mi

Top 54%
×5stories
+79ft-138ft

Overall

14319

Males

10054

M60-64

10054

10K→15K

6.2 - 9.3 mi

Top 52%
×3stories
+67ft-78ft

Overall

13800

Males

9821

M60-64

9821

15K→20K

9.3 - 12.4 mi

Top 51%
×5stories
+106ft-86ft

Overall

13454

Males

9646

M60-64

9646

20K→Half

12.4 - 13.1 mi

Top 54%
×2stories
+19ft-37ft

Overall

14243

Males

10015

M60-64

10015

Half→25K

13.1 - 15.5 mi

Top 51%
×4stories
+66ft-88ft

Overall

13578

Males

9597

M60-64

9597

25K→30K

15.5 - 18.6 mi

Top 60%
×9stories
+181ft-148ft

Overall

15877

Males

10427

M60-64

10427

30K→20M

18.6 - 20.0 mi

Top 61%
×5stories
+64ft-50ft

Overall

16333

Males

10539

M60-64

10539

20M→21M

20.0 - 21.0 mi

Top 58%
×8stories
+106ft-24ft

Overall

15381

Males

10088

M60-64

10088

21M→35K

21.0 - 21.8 mi

Top 67%
×7stories
+17ft-86ft

Overall

17884

Males

11085

M60-64

11085

35K→23M

21.8 - 23.0 mi

Top 68%
×5stories
+23ft-63ft

Overall

18172

Males

11190

M60-64

11190

23M→24M

23.0 - 24.0 mi

Top 69%
×6stories
+12ft-82ft

Overall

18375

Males

11252

M60-64

11252

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

17571

Males

10826

M60-64

10826

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

16522

Males

10334

M60-64

10334

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2stories
+22ft-21ft

Overall

19371

Males

11686

M60-64

11686

Passing Analysis

Category:
Athletes Passed
2089
Passed By
2091
Net Change
-2
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15513
5K → 10K695101+594#15513#14919
10K → 15K44858+390#14919#14529
15K → 20K33152+279#14529#14250
20K → Half3124+7#14250#14243
Half → 25K20488+116#14243#14127
25K → 30K84451-367#14127#14494
30K → 20M56200-144#14494#14638
20M → 21M74105-31#14638#14669
21M → 35K25146-121#14669#14790
35K → 23M28260-232#14790#15022
23M → 24M28173-145#15022#15167
24M → 40K31168-137#15167#15304
40K → 25.2M2738-11#15304#15315
25.2M → Finish27227-200#15315#15515
TOTALS20892091-2
📊

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