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BOSTON MARATHON 2023

David Stascavage

Bib: 10365•M

MN

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 47%
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

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
7:28/mi
23:12
↑ 97↓ 3451.5%
10K· 6.21 mi
7:25/mi
46:13
↑ 79↓ 1380.4%
15K· 9.32 mi
7:54/mi
1:10:46
↑ 67↓ 78
20K· 12.43 mi
7:42/mi
1:34:42
↑ 106↓ 860.1%
Half· 13.11 mi
7:45/mi
1:39:59
↑ 19↓ 370.5%
25K· 15.53 mi
7:52/mi
1:59:04
↑ 66↓ 880.2%
30K· 18.64 mi
8:18/mi
2:24:51
↑ 181↓ 1480.2%
20M
8:12/mi
2:36:00
↑ 64↓ 500.2%
21M
8:45/mi
2:44:45
↑ 106↓ 241.6%
35K· 21.75 mi
8:05/mi
2:50:48
↑ 17↓ 861.7%
23M
8:30/mi
3:01:27
↑ 23↓ 630.6%
24M
9:02/mi
3:10:29
↓ 821.3%
40K· 24.85 mi
10:40/mi
3:19:36
↓ 200.3%
25.2M
9:11/mi
3:22:46
↑ 13↓ 160.2%
Finish· 26.22 mi
8:01/mi
3:30:56
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:59
Pace7:38 /mi
2nd Half
Distance13.11 mi
Time1:50:57
Pace8:28 /mi
📊Positive Split: 11.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:5923:127:2823:12
7:28
-
10K
6.21 mi11:13:0046:137:2623:01
7:25
-0:03
15K
9.32 mi11:37:331:10:467:3624:33
7:54
+0:29
20K
12.43 mi12:01:291:34:427:3723:56
7:42
-0:12
Half
13.11 mi12:06:461:39:597:385:17
7:45
+0:03
25K
15.53 mi12:25:511:59:047:4019:05
7:52
+0:07
30K
18.64 mi12:51:382:24:517:4625:47
8:18
+0:26
20M
20.00 mi13:02:472:36:007:4811:09
8:12
-0:06
21M
21.00 mi13:11:322:44:457:518:45
8:45
+0:33
35K
21.75 mi13:17:352:50:487:516:03
8:05
-0:40
23M
23.00 mi13:28:143:01:277:5310:39
8:30
+0:25
24M
24.00 mi13:37:163:10:297:569:02
9:02
+0:32
40K
24.85 mi13:46:233:19:368:029:07
10:40
+1:38
25.2M
25.20 mi13:49:333:22:468:033:10
9:11
-1:29
Finish
26.22 mi13:57:433:30:568:038:10
8:01
-1:10

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

7:25 /mi

Average Pace

8:03 /mi

Slowest Pace

10:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

46:13

22% of race

Time at Steady Pace

2:04:00

59% of race

Time at Slower Pace

40:43

19% of race

Average Pace: 8:03 /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 mi10:49:5923:127:2823:12
7:28
#9352
10K
6.21 mi11:13:0046:137:2623:01
7:25
#9482
15K
9.32 mi11:37:331:10:467:3624:33
7:54
#10866
20K
12.43 mi12:01:291:34:427:3723:56
7:42
#10874
Half
13.11 mi12:06:461:39:597:385:17
7:45
#10948
25K
15.53 mi12:25:511:59:047:4019:05
7:52
#11021
30K
18.64 mi12:51:382:24:517:4625:47
8:18
#11352
20M
20.00 mi13:02:472:36:007:4811:09
8:12
#11364
21M
21.00 mi13:11:322:44:457:518:45
8:45
#11378
35K
21.75 mi13:17:352:50:487:516:03
8:05
#11423
23M
23.00 mi13:28:143:01:277:5310:39
8:30
#11545
24M
24.00 mi13:37:163:10:297:569:02
9:02
#11887
40K
24.85 mi13:46:233:19:368:029:07
10:40
#12523
25.2M
25.20 mi13:49:333:22:468:033:10
9:11
#12533
Finish
26.22 mi13:57:433:30:568:038:10
8:01
#12510
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi93527788778813534(Top 51%)9718(Top 64%)9718(Top 474%)
10K6.21 mi3.10 mi9482-1307869-817869-819702(Top 36%)7998(Top 53%)7998(Top 390%)
15K9.32 mi3.11 mi10866-13848589-7208589-72013534(Top 51%)9718(Top 64%)9718(Top 474%)
20K12.43 mi3.11 mi10874-88581+88581+810951(Top 41%)8558(Top 56%)8558(Top 417%)
Half13.11 mi0.68 mi10948-748622-418622-4112204(Top 46%)9158(Top 60%)9158(Top 446%)
25K15.53 mi2.42 mi11021-738638-168638-1611688(Top 44%)8789(Top 58%)8789(Top 428%)
30K18.64 mi3.11 mi11352-3318726-888726-8813019(Top 49%)9233(Top 61%)9233(Top 450%)
20M20.00 mi1.36 mi11364-128714+128714+1211726(Top 44%)8589(Top 57%)8589(Top 419%)
21M21.00 mi1.00 mi11378-148703+118703+1111946(Top 45%)8563(Top 56%)8563(Top 417%)
35K21.75 mi0.75 mi11423-458707-48707-412690(Top 48%)8854(Top 58%)8854(Top 431%)
23M23.00 mi1.25 mi11545-1228737-308737-3013247(Top 50%)9018(Top 59%)9018(Top 439%)
24M24.00 mi1.00 mi11887-3428864-1278864-12717363(Top 65%)10783(Top 71%)10783(Top 525%)
40K24.85 mi0.85 mi12523-6369119-2559119-25521599(Top 81%)12629(Top 83%)12629(Top 615%)
25.2M25.20 mi0.35 mi12533-109118+19118+113483(Top 51%)8976(Top 59%)8976(Top 437%)
Finish26.22 mi1.02 mi12510+239084+349084+3412207(Top 46%)8382(Top 55%)8382(Top 408%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21story building
+97ft-345ft

Overall

13534

Males

9718

M50-54

9718

5K→10K

3.1 - 6.2 mi

Top 36%
×5story building
+79ft-138ft

Overall

9702

Males

7998

M50-54

7998

10K→15K

6.2 - 9.3 mi

Top 51%
×3story building
+67ft-78ft

Overall

13534

Males

9718

M50-54

9718

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

10951

Males

8558

M50-54

8558

20K→Half

12.4 - 13.1 mi

Top 46%
×2story building
+19ft-37ft

Overall

12204

Males

9158

M50-54

9158

Half→25K

13.1 - 15.5 mi

Top 44%
×4story building
+66ft-88ft

Overall

11688

Males

8789

M50-54

8789

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

13019

Males

9233

M50-54

9233

30K→20M

18.6 - 20.0 mi

Top 44%
×5story building
+64ft-50ft

Overall

11726

Males

8589

M50-54

8589

20M→21M

20.0 - 21.0 mi

Top 45%
×8story building
+106ft-24ft

Overall

11946

Males

8563

M50-54

8563

21M→35K

21.0 - 21.8 mi

Top 48%
×7story building
+17ft-86ft

Overall

12690

Males

8854

M50-54

8854

35K→23M

21.8 - 23.0 mi

Top 50%
×5story building
+23ft-63ft

Overall

13247

Males

9018

M50-54

9018

23M→24M

23.0 - 24.0 mi

Top 65%
×6story building
+12ft-82ft

Overall

17363

Males

10783

M50-54

10783

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

21599

Males

12629

M50-54

12629

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1story
+13ft-16ft

Overall

13483

Males

8976

M50-54

8976

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2story building
+22ft-21ft

Overall

12207

Males

8382

M50-54

8382

Passing Analysis

Category:
Athletes Passed
979
Passed By
4135
Net Change
-3158
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9352
5K → 10K222352-130#9352#9482
10K → 15K101392-1384#9482#10866
15K → 20K158166-8#10866#10874
20K → Half882-74#10874#10948
Half → 25K101174-73#10948#11021
25K → 30K92423-331#11021#11352
30K → 20M8193-12#11352#11364
20M → 21M88102-14#11364#11378
21M → 35K3681-45#11378#11423
35K → 23M61183-122#11423#11545
23M → 24M11353-342#11545#11887
24M → 40K5641-636#11887#12523
40K → 25.2M2636-10#12523#12533
25.2M → Finish8057+23#12533#12510
TOTALS9794135-3158
📊

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