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BOSTON MARATHON 2023

David Elvin

Bib: 29305•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:46
Rank: #20144
Start → 5K
27:46 | 8:56/mi
10K· 6.21 mi
55:46
Rank: #20540 (-396)
5K → 10K
28:00 | 9:01/mi
15K· 9.32 mi
1:22:59
Rank: #20133 (+407)
10K → 15K
27:13 | 8:46/mi
20K· 12.43 mi
1:50:09
Rank: #19650 (+483)
15K → 20K
27:10 | 8:45/mi
Half· 13.11 mi
1:56:03
Rank: #19601 (+49)
20K → Half
5:54 | 8:39/mi
25K· 15.53 mi
2:17:21
Rank: #19314 (+287)
Half → 25K
21:18 | 8:47/mi
30K· 18.64 mi
2:44:31
Rank: #18717 (+597)
25K → 30K
27:10 | 8:45/mi
20M
2:56:26
Rank: #18452 (+265)
30K → 20M
11:55 | 8:46/mi
21M
3:05:39
Rank: #18225 (+227)
20M → 21M
9:13 | 9:13/mi
35K· 21.75 mi
3:11:50
Rank: #18066 (+159)
21M → 35K
6:11 | 8:16/mi
23M
3:22:13
Rank: #17711 (+355)
35K → 23M
10:23 | 8:18/mi
24M
3:30:18
Rank: #17465 (+246)
23M → 24M
8:05 | 8:05/mi
40K· 24.85 mi
3:37:06
Rank: #17193 (+272)
24M → 40K
6:48 | 7:57/mi
25.2M
3:40:16
Rank: #17147 (+46)
40K → 25.2M
3:10 | 9:11/mi
Finish· 26.22 mi
3:48:27
Rank: #16970 (+177)
25.2M → Finish
8:11 | 8:02/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:56:03
Pace8:51 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:52:24
Pace8:34 /mi
📊Negative Split: 3.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:3727:468:5627:46
8:56
-
10K
6.21 mi12:13:3755:468:5828:00
9:01
+0:05
15K
9.32 mi12:40:501:22:598:5427:13
8:46
-0:15
20K
12.43 mi13:08:001:50:098:5227:10
8:45
-0:01
Half
13.11 mi13:13:541:56:038:515:54
8:39
-0:06
25K
15.53 mi13:35:122:17:218:5121:18
8:47
+0:08
30K
18.64 mi14:02:222:44:318:5027:10
8:45
-0:02
20M
20.00 mi14:14:172:56:268:4911:55
8:46
+0:01
21M
21.00 mi14:23:303:05:398:509:13
9:13
+0:27
35K
21.75 mi14:29:413:11:508:496:11
8:16
-0:57
23M
23.00 mi14:40:043:22:138:4810:23
8:18
+0:02
24M
24.00 mi14:48:093:30:188:468:05
8:05
-0:13
40K
24.85 mi14:54:573:37:068:446:48
7:57
-0:08
25.2M
25.20 mi14:58:073:40:168:443:10
9:11
+1:14
Finish
26.22 mi15:06:183:48:278:438:11
8:02
-1:09

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

7:57 /mi

Average Pace

8:43 /mi

Slowest Pace

9:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

45:32

20% of race

Time at Steady Pace

3:02:55

80% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:43 /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 mi11:45:3727:468:5627:46
8:56
#20144
10K
6.21 mi12:13:3755:468:5828:00
9:01
#20540
15K
9.32 mi12:40:501:22:598:5427:13
8:46
#20133
20K
12.43 mi13:08:001:50:098:5227:10
8:45
#19650
Half
13.11 mi13:13:541:56:038:515:54
8:39
#19601
25K
15.53 mi13:35:122:17:218:5121:18
8:47
#19314
30K
18.64 mi14:02:222:44:318:5027:10
8:45
#18717
20M
20.00 mi14:14:172:56:268:4911:55
8:46
#18452
21M
21.00 mi14:23:303:05:398:509:13
9:13
#18225
35K
21.75 mi14:29:413:11:508:496:11
8:16
#18066
23M
23.00 mi14:40:043:22:138:4810:23
8:18
#17711
24M
24.00 mi14:48:093:30:188:468:05
8:05
#17465
40K
24.85 mi14:54:573:37:068:446:48
7:57
#17193
25.2M
25.20 mi14:58:073:40:168:443:10
9:11
#17147
Finish
26.22 mi15:06:183:48:278:438:11
8:02
#16970
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi20144122151221519285(Top 72%)12001(Top 79%)12001(Top 585%)
10K6.21 mi3.10 mi20540-39612462-24712462-24720914(Top 79%)12677(Top 84%)12677(Top 618%)
15K9.32 mi3.11 mi20133+40712299+16312299+16319285(Top 72%)12001(Top 79%)12001(Top 585%)
20K12.43 mi3.11 mi19650+48312116+18312116+18318368(Top 69%)11628(Top 77%)11628(Top 567%)
Half13.11 mi0.68 mi19601+4912097+1912097+1918548(Top 70%)11709(Top 77%)11709(Top 571%)
25K15.53 mi2.42 mi19314+28711978+11911978+11917856(Top 67%)11339(Top 75%)11339(Top 553%)
30K18.64 mi3.11 mi18717+59711714+26411714+26415745(Top 59%)10377(Top 68%)10377(Top 506%)
20M20.00 mi1.36 mi18452+26511590+12411590+12415249(Top 57%)10097(Top 67%)10097(Top 492%)
21M21.00 mi1.00 mi18225+22711467+12311467+12314554(Top 55%)9750(Top 64%)9750(Top 475%)
35K21.75 mi0.75 mi18066+15911411+5611411+5613891(Top 52%)9380(Top 62%)9380(Top 457%)
23M23.00 mi1.25 mi17711+35511241+17011241+17011839(Top 44%)8404(Top 55%)8404(Top 410%)
24M24.00 mi1.00 mi17465+24611142+9911142+9911818(Top 44%)8318(Top 55%)8318(Top 405%)
40K24.85 mi0.85 mi17193+27211003+13911003+1399734(Top 37%)7212(Top 48%)7212(Top 351%)
25.2M25.20 mi0.35 mi17147+4610978+2510978+2513534(Top 51%)9027(Top 59%)9027(Top 440%)
Finish26.22 mi1.02 mi16970+17710887+9110887+9112337(Top 46%)8451(Top 56%)8451(Top 412%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

19285

Males

12001

M50-54

12001

5K→10K

3.1 - 6.2 mi

Top 79%
×5stories
+79ft-138ft

Overall

20914

Males

12677

M50-54

12677

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

19285

Males

12001

M50-54

12001

15K→20K

9.3 - 12.4 mi

Top 69%
×5stories
+106ft-86ft

Overall

18368

Males

11628

M50-54

11628

20K→Half

12.4 - 13.1 mi

Top 70%
×2stories
+19ft-37ft

Overall

18548

Males

11709

M50-54

11709

Half→25K

13.1 - 15.5 mi

Top 67%
×4stories
+66ft-88ft

Overall

17856

Males

11339

M50-54

11339

25K→30K

15.5 - 18.6 mi

Top 59%
×9stories
+181ft-148ft

Overall

15745

Males

10377

M50-54

10377

30K→20M

18.6 - 20.0 mi

Top 57%
×5stories
+64ft-50ft

Overall

15249

Males

10097

M50-54

10097

20M→21M

20.0 - 21.0 mi

Top 55%
×8stories
+106ft-24ft

Overall

14554

Males

9750

M50-54

9750

21M→35K

21.0 - 21.8 mi

Top 52%
×7stories
+17ft-86ft

Overall

13891

Males

9380

M50-54

9380

35K→23M

21.8 - 23.0 mi

Top 44%
×5stories
+23ft-63ft

Overall

11839

Males

8404

M50-54

8404

23M→24M

23.0 - 24.0 mi

Top 44%
×6stories
+12ft-82ft

Overall

11818

Males

8318

M50-54

8318

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

9734

Males

7212

M50-54

7212

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1story
+13ft-16ft

Overall

13534

Males

9027

M50-54

9027

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2stories
+22ft-21ft

Overall

12337

Males

8451

M50-54

8451

Passing Analysis

Category:
Athletes Passed
3828
Passed By
654
Net Change
+3174
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20144
5K → 10K137533-396#20144#20540
10K → 15K44942+407#20540#20133
15K → 20K50017+483#20133#19650
20K → Half5910+49#19650#19601
Half → 25K30922+287#19601#19314
25K → 30K6014+597#19314#18717
30K → 20M2694+265#18717#18452
20M → 21M2369+227#18452#18225
21M → 35K1634+159#18225#18066
35K → 23M3550+355#18066#17711
23M → 24M2460+246#17711#17465
24M → 40K2731+272#17465#17193
40K → 25.2M482+46#17193#17147
25.2M → Finish1836+177#17147#16970
TOTALS3828654+3174
📊

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