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BOSTON MARATHON 2023

Denis Belisle

Bib: 19391•M

QC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 38%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 42%
Division (M55-59)
#0 / 1422
Top 24%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:04/mi
25:04
↑ 97↓ 3451.5%
10K· 6.21 mi
7:53/mi
49:35
↑ 79↓ 1380.4%
15K· 9.32 mi
7:43/mi
1:13:32
↑ 67↓ 78
20K· 12.43 mi
7:38/mi
1:37:14
↑ 106↓ 860.1%
Half· 13.11 mi
7:20/mi
1:42:14
↑ 19↓ 370.5%
25K· 15.53 mi
7:42/mi
2:00:54
↑ 66↓ 880.2%
30K· 18.64 mi
7:50/mi
2:25:13
↑ 181↓ 1480.2%
20M
7:40/mi
2:35:38
↑ 64↓ 500.2%
21M
7:52/mi
2:43:30
↑ 106↓ 241.6%
35K· 21.75 mi
7:32/mi
2:49:08
↑ 17↓ 861.7%
23M
7:42/mi
2:58:47
↑ 23↓ 630.6%
24M
7:39/mi
3:06:26
↓ 821.3%
40K· 24.85 mi
7:33/mi
3:12:53
↓ 200.3%
25.2M
8:19/mi
3:15:45
↑ 13↓ 160.2%
Finish· 26.22 mi
7:25/mi
3:23:18
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:42:14
Pace7:48 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:41:04
Pace7:43 /mi
📊Negative Split: 1.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:2825:048:0425:04
8:04
-
10K
6.21 mi11:42:5949:357:5924:31
7:53
-0:11
15K
9.32 mi12:06:561:13:327:5323:57
7:43
-0:10
20K
12.43 mi12:30:381:37:147:4923:42
7:38
-0:05
Half
13.11 mi12:35:381:42:147:485:00
7:20
-0:18
25K
15.53 mi12:54:182:00:547:4718:40
7:42
+0:22
30K
18.64 mi13:18:372:25:137:4724:19
7:50
+0:08
20M
20.00 mi13:29:022:35:387:4710:25
7:40
-0:10
21M
21.00 mi13:36:542:43:307:477:52
7:52
+0:12
35K
21.75 mi13:42:322:49:087:475:38
7:32
-0:20
23M
23.00 mi13:52:112:58:477:469:39
7:42
+0:10
24M
24.00 mi13:59:503:06:267:467:39
7:39
-0:03
40K
24.85 mi14:06:173:12:537:466:27
7:33
-0:06
25.2M
25.20 mi14:09:093:15:457:462:52
8:19
+0:46
Finish
26.22 mi14:16:423:23:187:467:33
7:25
-0:54

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

7:20 /mi

Average Pace

7:46 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:20:26

99% of race

Time at Steady Pace

2:52

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:45 /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 mi11:18:2825:048:0425:04
8:04
#14459
10K
6.21 mi11:42:5949:357:5924:31
7:53
#14231
15K
9.32 mi12:06:561:13:327:5323:57
7:43
#13480
20K
12.43 mi12:30:381:37:147:4923:42
7:38
#12610
Half
13.11 mi12:35:381:42:147:485:00
7:20
#12388
25K
15.53 mi12:54:182:00:547:4718:40
7:42
#12031
30K
18.64 mi13:18:372:25:137:4724:19
7:50
#11524
20M
20.00 mi13:29:022:35:387:4710:25
7:40
#11197
21M
21.00 mi13:36:542:43:307:477:52
7:52
#10885
35K
21.75 mi13:42:322:49:087:475:38
7:32
#10787
23M
23.00 mi13:52:112:58:477:469:39
7:42
#10586
24M
24.00 mi13:59:503:06:267:467:39
7:39
#10484
40K
24.85 mi14:06:173:12:537:466:27
7:33
#10321
25.2M
25.20 mi14:09:093:15:457:462:52
8:19
#10263
Finish
26.22 mi14:16:423:23:187:467:33
7:25
#10137
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi14459101351013511895(Top 45%)9028(Top 59%)9028(Top 635%)
10K6.21 mi3.10 mi14231+22810024+11110024+11113889(Top 52%)9892(Top 65%)9892(Top 696%)
15K9.32 mi3.11 mi13480+7519723+3019723+30111895(Top 45%)9028(Top 59%)9028(Top 635%)
20K12.43 mi3.11 mi12610+8709326+3979326+39710294(Top 39%)8232(Top 54%)8232(Top 579%)
Half13.11 mi0.68 mi12388+2229226+1009226+1008819(Top 33%)7410(Top 49%)7410(Top 521%)
25K15.53 mi2.42 mi12031+3579054+1729054+17210272(Top 39%)8135(Top 54%)8135(Top 572%)
30K18.64 mi3.11 mi11524+5078806+2488806+2489564(Top 36%)7606(Top 50%)7606(Top 535%)
20M20.00 mi1.36 mi11197+3278636+1708636+1707940(Top 30%)6566(Top 43%)6566(Top 462%)
21M21.00 mi1.00 mi10885+3128466+1708466+1706560(Top 25%)5598(Top 37%)5598(Top 394%)
35K21.75 mi0.75 mi10787+988406+608406+608724(Top 33%)6941(Top 46%)6941(Top 488%)
23M23.00 mi1.25 mi10586+2018272+1348272+1347768(Top 29%)6293(Top 41%)6293(Top 443%)
24M24.00 mi1.00 mi10484+1028195+778195+778745(Top 33%)6763(Top 45%)6763(Top 476%)
40K24.85 mi0.85 mi10321+1638094+1018094+1016974(Top 26%)5627(Top 37%)5627(Top 396%)
25.2M25.20 mi0.35 mi10263+588057+378057+378366(Top 31%)6398(Top 42%)6398(Top 450%)
Finish26.22 mi1.02 mi10137+1267960+977960+977849(Top 29%)6084(Top 40%)6084(Top 428%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21story building
+97ft-345ft

Overall

11895

Males

9028

M55-59

9028

5K→10K

3.1 - 6.2 mi

Top 52%
×5story building
+79ft-138ft

Overall

13889

Males

9892

M55-59

9892

10K→15K

6.2 - 9.3 mi

Top 45%
×3story building
+67ft-78ft

Overall

11895

Males

9028

M55-59

9028

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

10294

Males

8232

M55-59

8232

20K→Half

12.4 - 13.1 mi

Top 33%
×2story building
+19ft-37ft

Overall

8819

Males

7410

M55-59

7410

Half→25K

13.1 - 15.5 mi

Top 39%
×4story building
+66ft-88ft

Overall

10272

Males

8135

M55-59

8135

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

9564

Males

7606

M55-59

7606

30K→20M

18.6 - 20.0 mi

Top 30%
×5story building
+64ft-50ft

Overall

7940

Males

6566

M55-59

6566

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

6560

Males

5598

M55-59

5598

21M→35K

21.0 - 21.8 mi

Top 33%
×7story building
+17ft-86ft

Overall

8724

Males

6941

M55-59

6941

35K→23M

21.8 - 23.0 mi

Top 29%
×5story building
+23ft-63ft

Overall

7768

Males

6293

M55-59

6293

23M→24M

23.0 - 24.0 mi

Top 33%
×6story building
+12ft-82ft

Overall

8745

Males

6763

M55-59

6763

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

6974

Males

5627

M55-59

5627

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8366

Males

6398

M55-59

6398

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2story building
+22ft-21ft

Overall

7849

Males

6084

M55-59

6084

Passing Analysis

Category:
Athletes Passed
4646*
Passed By
324
Net Change
+4322
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14459
5K → 10K424196+228#14459#14231
10K → 15K76716+751#14231#13480
15K → 20K8722+870#13480#12610
20K → Half2220+222#12610#12388
Half → 25K36811+357#12388#12031
25K → 30K51912+507#12031#11524
30K → 20M3281+327#11524#11197
20M → 21M3120+312#11197#10885
21M → 35K1079+98#10885#10787
35K → 23M21211+201#10787#10586
23M → 24M12624+102#10586#10484
24M → 40K17310+163#10484#10321
40K → 25.2M69*11+58#10321#10263
25.2M → Finish14721+126#10263#10137
TOTALS4646*324+4322

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

📊

Passing Visuals

Category:
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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