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BOSTON MARATHON 2023

David Cersley

Bib: 14036•M

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 33%
Gender (Male)
#0 / 15176
Top 48%
Masters (Masters Men)
#0 / 9891
Top 36%
Division (M50-54)
#0 / 2052
Top 32%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:33
Rank: #10330
Start → 5K
23:33 | 7:35/mi
10K· 6.21 mi
46:43
Rank: #10204 (+126)
5K → 10K
23:10 | 7:27/mi
15K· 9.32 mi
1:10:00
Rank: #10150 (+54)
10K → 15K
23:17 | 7:30/mi
20K· 12.43 mi
1:33:23
Rank: #9953 (+197)
15K → 20K
23:23 | 7:32/mi
Half· 13.11 mi
1:38:28
Rank: #9944 (+9)
20K → Half
5:05 | 7:27/mi
25K· 15.53 mi
1:56:40
Rank: #9735 (+209)
Half → 25K
18:12 | 7:30/mi
30K· 18.64 mi
2:20:31
Rank: #9463 (+272)
25K → 30K
23:51 | 7:41/mi
20M
2:30:58
Rank: #9343 (+120)
30K → 20M
10:27 | 7:41/mi
21M
2:39:06
Rank: #9231 (+112)
20M → 21M
8:08 | 8:08/mi
35K· 21.75 mi
2:44:36
Rank: #9144 (+87)
21M → 35K
5:30 | 7:21/mi
23M
2:54:12
Rank: #9022 (+122)
35K → 23M
9:36 | 7:40/mi
24M
3:01:47
Rank: #8974 (+48)
23M → 24M
7:35 | 7:35/mi
40K· 24.85 mi
3:08:14
Rank: #8879 (+95)
24M → 40K
6:27 | 7:33/mi
25.2M
3:11:02
Rank: #8828 (+51)
40K → 25.2M
2:48 | 8:07/mi
Finish· 26.22 mi
3:18:41
Rank: #8792 (+36)
25.2M → Finish
7:39 | 7:30/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:28
Pace7:31 /mi
2nd Half
Distance13.11 mi
Time1:40:13
Pace7:39 /mi
📊Positive Split: 1.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:1423:337:3523:33
7:35
-
10K
6.21 mi11:16:2446:437:3123:10
7:27
-0:08
15K
9.32 mi11:39:411:10:007:3123:17
7:30
+0:03
20K
12.43 mi12:03:041:33:237:3123:23
7:32
+0:02
Half
13.11 mi12:08:091:38:287:315:05
7:27
-0:05
25K
15.53 mi12:26:211:56:407:3118:12
7:30
+0:03
30K
18.64 mi12:50:122:20:317:3223:51
7:41
+0:11
20M
20.00 mi13:00:392:30:587:3310:27
7:41
0:00
21M
21.00 mi13:08:472:39:067:358:08
8:08
+0:27
35K
21.75 mi13:14:172:44:367:345:30
7:21
-0:47
23M
23.00 mi13:23:532:54:127:349:36
7:40
+0:19
24M
24.00 mi13:31:283:01:477:347:35
7:35
-0:05
40K
24.85 mi13:37:553:08:147:346:27
7:33
-0:02
25.2M
25.20 mi13:40:433:11:027:352:48
8:07
+0:34
Finish
26.22 mi13:48:223:18:417:357:39
7:30
-0:37

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

7:21 /mi

Average Pace

7:35 /mi

Slowest Pace

8:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:45

94% of race

Time at Steady Pace

10:56

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:35 /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 mi10:53:1423:337:3523:33
7:35
#10330
10K
6.21 mi11:16:2446:437:3123:10
7:27
#10204
15K
9.32 mi11:39:411:10:007:3123:17
7:30
#10150
20K
12.43 mi12:03:041:33:237:3123:23
7:32
#9953
Half
13.11 mi12:08:091:38:287:315:05
7:27
#9944
25K
15.53 mi12:26:211:56:407:3118:12
7:30
#9735
30K
18.64 mi12:50:122:20:317:3223:51
7:41
#9463
20M
20.00 mi13:00:392:30:587:3310:27
7:41
#9343
21M
21.00 mi13:08:472:39:067:358:08
8:08
#9231
35K
21.75 mi13:14:172:44:367:345:30
7:21
#9144
23M
23.00 mi13:23:532:54:127:349:36
7:40
#9022
24M
24.00 mi13:31:283:01:477:347:35
7:35
#8974
40K
24.85 mi13:37:553:08:147:346:27
7:33
#8879
25.2M
25.20 mi13:40:433:11:027:352:48
8:07
#8828
Finish
26.22 mi13:48:223:18:417:357:39
7:30
#8792
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi103308307830710115(Top 38%)8202(Top 54%)8202(Top 400%)
10K6.21 mi3.10 mi10204+1268260+478260+4710106(Top 38%)8222(Top 54%)8222(Top 401%)
15K9.32 mi3.11 mi10150+548251+98251+910115(Top 38%)8202(Top 54%)8202(Top 400%)
20K12.43 mi3.11 mi9953+1978122+1298122+1299499(Top 36%)7797(Top 51%)7797(Top 380%)
Half13.11 mi0.68 mi9944+98116+68116+69752(Top 37%)7945(Top 52%)7945(Top 387%)
25K15.53 mi2.42 mi9735+2097986+1307986+1308828(Top 33%)7329(Top 48%)7329(Top 357%)
30K18.64 mi3.11 mi9463+2727778+2087778+2088475(Top 32%)6968(Top 46%)6968(Top 340%)
20M20.00 mi1.36 mi9343+1207678+1007678+1008095(Top 30%)6655(Top 44%)6655(Top 324%)
21M21.00 mi1.00 mi9231+1127592+867592+868183(Top 31%)6581(Top 43%)6581(Top 321%)
35K21.75 mi0.75 mi9144+877524+687524+687480(Top 28%)6184(Top 41%)6184(Top 301%)
23M23.00 mi1.25 mi9022+1227433+917433+917541(Top 28%)6150(Top 41%)6150(Top 300%)
24M24.00 mi1.00 mi8974+487377+567377+568270(Top 31%)6475(Top 43%)6475(Top 316%)
40K24.85 mi0.85 mi8879+957296+817296+816967(Top 26%)5620(Top 37%)5620(Top 274%)
25.2M25.20 mi0.35 mi8828+517256+407256+407198(Top 27%)5712(Top 38%)5712(Top 278%)
Finish26.22 mi1.02 mi8792+367222+347222+348583(Top 32%)6513(Top 43%)6513(Top 317%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21stories
+97ft-345ft

Overall

10115

Males

8202

M50-54

8202

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10106

Males

8222

M50-54

8222

10K→15K

6.2 - 9.3 mi

Top 38%
×3stories
+67ft-78ft

Overall

10115

Males

8202

M50-54

8202

15K→20K

9.3 - 12.4 mi

Top 36%
×5stories
+106ft-86ft

Overall

9499

Males

7797

M50-54

7797

20K→Half

12.4 - 13.1 mi

Top 37%
×2stories
+19ft-37ft

Overall

9752

Males

7945

M50-54

7945

Half→25K

13.1 - 15.5 mi

Top 33%
×4stories
+66ft-88ft

Overall

8828

Males

7329

M50-54

7329

25K→30K

15.5 - 18.6 mi

Top 32%
×9stories
+181ft-148ft

Overall

8475

Males

6968

M50-54

6968

30K→20M

18.6 - 20.0 mi

Top 30%
×5stories
+64ft-50ft

Overall

8095

Males

6655

M50-54

6655

20M→21M

20.0 - 21.0 mi

Top 31%
×8stories
+106ft-24ft

Overall

8183

Males

6581

M50-54

6581

21M→35K

21.0 - 21.8 mi

Top 28%
×7stories
+17ft-86ft

Overall

7480

Males

6184

M50-54

6184

35K→23M

21.8 - 23.0 mi

Top 28%
×5stories
+23ft-63ft

Overall

7541

Males

6150

M50-54

6150

23M→24M

23.0 - 24.0 mi

Top 31%
×6stories
+12ft-82ft

Overall

8270

Males

6475

M50-54

6475

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

6967

Males

5620

M50-54

5620

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7198

Males

5712

M50-54

5712

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2stories
+22ft-21ft

Overall

8583

Males

6513

M50-54

6513

Passing Analysis

Category:
Athletes Passed
2279*
Passed By
741
Net Change
+1538
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10330
5K → 10K375*249+126#10330#10204
10K → 15K202148+54#10204#10150
15K → 20K273*76+197#10150#9953
20K → Half2819+9#9953#9944
Half → 25K230*21+209#9944#9735
25K → 30K317*45+272#9735#9463
30K → 20M14121+120#9463#9343
20M → 21M14533+112#9343#9231
21M → 35K936+87#9231#9144
35K → 23M14624+122#9144#9022
23M → 24M9446+48#9022#8974
24M → 40K1038+95#8974#8879
40K → 25.2M565+51#8879#8828
25.2M → Finish7640+36#8828#8792
TOTALS2279*741+1538

* 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