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BOSTON MARATHON 2023

David Carey

Bib: 5148•M

CT

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 34%
Gender (Male)
#0 / 15176
Top 49%
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
21:18
Rank: #5198
Start → 5K
21:18 | 6:51/mi
10K· 6.21 mi
42:42
Rank: #5605 (-407)
5K → 10K
21:24 | 6:53/mi
15K· 9.32 mi
1:05:00
Rank: #6346 (-741)
10K → 15K
22:18 | 7:11/mi
20K· 12.43 mi
1:28:04
Rank: #6851 (-505)
15K → 20K
23:04 | 7:25/mi
Half· 13.11 mi
1:33:03
Rank: #6916 (-65)
20K → Half
4:59 | 7:18/mi
25K· 15.53 mi
1:51:55
Rank: #7394 (-478)
Half → 25K
18:52 | 7:47/mi
30K· 18.64 mi
2:16:50
Rank: #7943 (-549)
25K → 30K
24:55 | 8:01/mi
20M
2:30:06
Rank: #8990 (-1047)
30K → 20M
13:16 | 9:46/mi
21M
2:39:00
Rank: #9190 (-200)
20M → 21M
8:54 | 8:54/mi
35K· 21.75 mi
2:45:11
Rank: #9358 (-168)
21M → 35K
6:11 | 8:16/mi
23M
2:55:38
Rank: #9504 (-146)
35K → 23M
10:27 | 8:21/mi
24M
3:03:47
Rank: #9604 (-100)
23M → 24M
8:09 | 8:09/mi
40K· 24.85 mi
3:10:16
Rank: #9479 (+125)
24M → 40K
6:29 | 7:35/mi
25.2M
3:12:55
Rank: #9388 (+91)
40K → 25.2M
2:39 | 7:41/mi
Finish· 26.22 mi
3:19:39
Rank: #9096 (+292)
25.2M → Finish
6:44 | 6:36/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:03
Pace7:06 /mi
2nd Half
Distance13.11 mi
Time1:46:36
Pace8:08 /mi
📊Positive Split: 14.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:2521:186:5121:18
6:51
-
10K
6.21 mi10:45:4942:426:5221:24
6:53
+0:02
15K
9.32 mi11:08:071:05:006:5822:18
7:11
+0:18
20K
12.43 mi11:31:111:28:047:0523:04
7:25
+0:14
Half
13.11 mi11:36:101:33:037:064:59
7:18
-0:07
25K
15.53 mi11:55:021:51:557:1218:52
7:47
+0:29
30K
18.64 mi12:19:572:16:507:2024:55
8:01
+0:14
20M
20.00 mi12:33:132:30:067:3013:16
9:46
+1:45
21M
21.00 mi12:42:072:39:007:348:54
8:54
-0:52
35K
21.75 mi12:48:182:45:117:366:11
8:16
-0:38
23M
23.00 mi12:58:452:55:387:3810:27
8:21
+0:05
24M
24.00 mi13:06:543:03:477:398:09
8:09
-0:12
40K
24.85 mi13:13:233:10:167:396:29
7:35
-0:34
25.2M
25.20 mi13:16:023:12:557:392:39
7:41
+0:06
Finish
26.22 mi13:22:463:19:397:376:44
6:36
-1:05

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

6:36 /mi

Average Pace

7:37 /mi

Slowest Pace

9:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:11:44

36% of race

Time at Steady Pace

1:20:58

41% of race

Time at Slower Pace

46:57

24% of race

Average Pace: 7:37 /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 mi10:24:2521:186:5121:18
6:51
#5198
10K
6.21 mi10:45:4942:426:5221:24
6:53
#5605
15K
9.32 mi11:08:071:05:006:5822:18
7:11
#6346
20K
12.43 mi11:31:111:28:047:0523:04
7:25
#6851
Half
13.11 mi11:36:101:33:037:064:59
7:18
#6916
25K
15.53 mi11:55:021:51:557:1218:52
7:47
#7394
30K
18.64 mi12:19:572:16:507:2024:55
8:01
#7943
20M
20.00 mi12:33:132:30:067:3013:16
9:46
#8990
21M
21.00 mi12:42:072:39:007:348:54
8:54
#9190
35K
21.75 mi12:48:182:45:117:366:11
8:16
#9358
23M
23.00 mi12:58:452:55:387:3810:27
8:21
#9504
24M
24.00 mi13:06:543:03:477:398:09
8:09
#9604
40K
24.85 mi13:13:233:10:167:396:29
7:35
#9479
25.2M
25.20 mi13:16:023:12:557:392:39
7:41
#9388
Finish
26.22 mi13:22:463:19:397:376:44
6:36
#9096
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5198482148217647(Top 29%)6693(Top 44%)6693(Top 127%)
10K6.21 mi3.10 mi5605-4075163-3425163-3426046(Top 23%)5501(Top 36%)5501(Top 104%)
15K9.32 mi3.11 mi6346-7415745-5825745-5827647(Top 29%)6693(Top 44%)6693(Top 127%)
20K12.43 mi3.11 mi6851-5056141-3966141-3968702(Top 33%)7317(Top 48%)7317(Top 138%)
Half13.11 mi0.68 mi6916-656187-466187-468616(Top 32%)7280(Top 48%)7280(Top 138%)
25K15.53 mi2.42 mi7394-4786526-3396526-33910923(Top 41%)8457(Top 56%)8457(Top 160%)
30K18.64 mi3.11 mi7943-5496841-3156841-31511043(Top 41%)8361(Top 55%)8361(Top 158%)
20M20.00 mi1.36 mi8990-10477480-6397480-63919730(Top 74%)11987(Top 79%)11987(Top 227%)
21M21.00 mi1.00 mi9190-2007564-847564-8412811(Top 48%)8939(Top 59%)8939(Top 169%)
35K21.75 mi0.75 mi9358-1687651-877651-8713839(Top 52%)9328(Top 61%)9328(Top 176%)
23M23.00 mi1.25 mi9504-1467722-717722-7112183(Top 46%)8539(Top 56%)8539(Top 162%)
24M24.00 mi1.00 mi9604-1007748-267748-2612213(Top 46%)8486(Top 56%)8486(Top 161%)
40K24.85 mi0.85 mi9479+1257646+1027646+1027212(Top 27%)5760(Top 38%)5760(Top 109%)
25.2M25.20 mi0.35 mi9388+917578+687578+684832(Top 18%)4185(Top 28%)4185(Top 79%)
Finish26.22 mi1.02 mi9096+2927395+1837395+1833042(Top 11%)2751(Top 18%)2751(Top 52%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21stories
+97ft-345ft

Overall

7647

Males

6693

M18-39

6693

5K→10K

3.1 - 6.2 mi

Top 23%
×5stories
+79ft-138ft

Overall

6046

Males

5501

M18-39

5501

10K→15K

6.2 - 9.3 mi

Top 29%
×3stories
+67ft-78ft

Overall

7647

Males

6693

M18-39

6693

15K→20K

9.3 - 12.4 mi

Top 33%
×5stories
+106ft-86ft

Overall

8702

Males

7317

M18-39

7317

20K→Half

12.4 - 13.1 mi

Top 32%
×2stories
+19ft-37ft

Overall

8616

Males

7280

M18-39

7280

Half→25K

13.1 - 15.5 mi

Top 41%
×4stories
+66ft-88ft

Overall

10923

Males

8457

M18-39

8457

25K→30K

15.5 - 18.6 mi

Top 41%
×9stories
+181ft-148ft

Overall

11043

Males

8361

M18-39

8361

30K→20M

18.6 - 20.0 mi

Top 74%
×5stories
+64ft-50ft

Overall

19730

Males

11987

M18-39

11987

20M→21M

20.0 - 21.0 mi

Top 48%
×8stories
+106ft-24ft

Overall

12811

Males

8939

M18-39

8939

21M→35K

21.0 - 21.8 mi

Top 52%
×7stories
+17ft-86ft

Overall

13839

Males

9328

M18-39

9328

35K→23M

21.8 - 23.0 mi

Top 46%
×5stories
+23ft-63ft

Overall

12183

Males

8539

M18-39

8539

23M→24M

23.0 - 24.0 mi

Top 46%
×6stories
+12ft-82ft

Overall

12213

Males

8486

M18-39

8486

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7212

Males

5760

M18-39

5760

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

4832

Males

4185

M18-39

4185

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

3042

Males

2751

M18-39

2751

Passing Analysis

Category:
Athletes Passed
799*
Passed By
4697
Net Change
-3898
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5198
5K → 10K71478-407#5198#5605
10K → 15K9750-741#5605#6346
15K → 20K18523-505#6346#6851
20K → Half671-65#6851#6916
Half → 25K11489-478#6916#7394
25K → 30K32581-549#7394#7943
30K → 20M71054-1047#7943#8990
20M → 21M33233-200#8990#9190
21M → 35K16184-168#9190#9358
35K → 23M49195-146#9358#9504
23M → 24M36136-100#9504#9604
24M → 40K128*3+125#9604#9479
40K → 25.2M910+91#9479#9388
25.2M → Finish2920+292#9388#9096
TOTALS799*4697-3898

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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