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BOSTON MARATHON 2023

Eric Self

Bib: 14750•M

MO

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

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
8:42/mi
27:02
↑ 97↓ 3451.5%
10K· 6.21 mi
8:36/mi
53:46
↑ 79↓ 1380.4%
15K· 9.32 mi
8:39/mi
1:20:39
↑ 67↓ 78
20K· 12.43 mi
8:40/mi
1:47:34
↑ 106↓ 860.1%
Half· 13.11 mi
8:34/mi
1:53:25
↑ 19↓ 370.5%
25K· 15.53 mi
8:43/mi
2:14:34
↑ 66↓ 880.2%
30K· 18.64 mi
8:49/mi
2:41:59
↑ 181↓ 1480.2%
20M
8:54/mi
2:54:05
↑ 64↓ 500.2%
21M
9:41/mi
3:03:46
↑ 106↓ 241.6%
35K· 21.75 mi
8:43/mi
3:10:17
↑ 17↓ 861.7%
23M
8:58/mi
3:21:30
↑ 23↓ 630.6%
24M
9:44/mi
3:31:14
↓ 821.3%
40K· 24.85 mi
11:48/mi
3:41:19
↓ 200.3%
25.2M
11:39/mi
3:45:20
↑ 13↓ 160.2%
Finish· 26.22 mi
10:12/mi
3:55:44
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:25
Pace8:39 /mi
2nd Half
Distance13.11 mi
Time2:02:19
Pace9:20 /mi
📊Positive Split: 7.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:0127:028:4227:02
8:42
-
10K
6.21 mi11:22:4553:468:3926:44
8:36
-0:06
15K
9.32 mi11:49:381:20:398:3926:53
8:39
+0:03
20K
12.43 mi12:16:331:47:348:3926:55
8:40
+0:01
Half
13.11 mi12:22:241:53:258:395:51
8:34
-0:06
25K
15.53 mi12:43:332:14:348:4021:09
8:43
+0:09
30K
18.64 mi13:10:582:41:598:4127:25
8:49
+0:06
20M
20.00 mi13:23:042:54:058:4212:06
8:54
+0:05
21M
21.00 mi13:32:453:03:468:459:41
9:41
+0:47
35K
21.75 mi13:39:163:10:178:456:31
8:43
-0:58
23M
23.00 mi13:50:293:21:308:4611:13
8:58
+0:15
24M
24.00 mi14:00:133:31:148:489:44
9:44
+0:46
40K
24.85 mi14:10:183:41:198:5410:05
11:48
+2:04
25.2M
25.20 mi14:14:193:45:208:574:01
11:39
-0:09
Finish
26.22 mi14:24:433:55:449:0010:24
10:12
-1:27

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

8:34 /mi

Average Pace

9:00 /mi

Slowest Pace

11:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:11:49

81% of race

Time at Slower Pace

43:55

19% of race

Average Pace: 8:59 /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 mi10:56:0127:028:4227:02
8:42
#18890
10K
6.21 mi11:22:4553:468:3926:44
8:36
#18814
15K
9.32 mi11:49:381:20:398:3926:53
8:39
#18762
20K
12.43 mi12:16:331:47:348:3926:55
8:40
#18542
Half
13.11 mi12:22:241:53:258:395:51
8:34
#18522
25K
15.53 mi12:43:332:14:348:4021:09
8:43
#18351
30K
18.64 mi13:10:582:41:598:4127:25
8:49
#17913
20M
20.00 mi13:23:042:54:058:4212:06
8:54
#17748
21M
21.00 mi13:32:453:03:468:459:41
9:41
#17694
35K
21.75 mi13:39:163:10:178:456:31
8:43
#17636
23M
23.00 mi13:50:293:21:308:4611:13
8:58
#17515
24M
24.00 mi14:00:133:31:148:489:44
9:44
#17717
40K
24.85 mi14:10:183:41:198:5410:05
11:48
#18171
25.2M
25.20 mi14:14:193:45:208:574:01
11:39
#18274
Finish
26.22 mi14:24:433:55:449:0010:24
10:12
#18502
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi18890117341173418739(Top 70%)11770(Top 78%)11770(Top 574%)
10K6.21 mi3.10 mi18814+7611773-3911773-3918864(Top 71%)11843(Top 78%)11843(Top 577%)
15K9.32 mi3.11 mi18762+5211758+1511758+1518739(Top 70%)11770(Top 78%)11770(Top 574%)
20K12.43 mi3.11 mi18542+22011693+6511693+6517897(Top 67%)11424(Top 75%)11424(Top 557%)
Half13.11 mi0.68 mi18522+2011687+611687+618146(Top 68%)11552(Top 76%)11552(Top 563%)
25K15.53 mi2.42 mi18351+17111593+9411593+9417491(Top 66%)11195(Top 74%)11195(Top 546%)
30K18.64 mi3.11 mi17913+43811379+21411379+21416211(Top 61%)10573(Top 70%)10573(Top 515%)
20M20.00 mi1.36 mi17748+16511300+7911300+7916027(Top 60%)10425(Top 69%)10425(Top 508%)
21M21.00 mi1.00 mi17694+5411268+3211268+3216764(Top 63%)10698(Top 70%)10698(Top 521%)
35K21.75 mi0.75 mi17636+5811228+4011228+4016453(Top 62%)10470(Top 69%)10470(Top 510%)
23M23.00 mi1.25 mi17515+12111164+6411164+6415844(Top 60%)10176(Top 67%)10176(Top 496%)
24M24.00 mi1.00 mi17717-20211235-7111235-7119989(Top 75%)11994(Top 79%)11994(Top 585%)
40K24.85 mi0.85 mi18171-45411415-18011415-18023618(Top 89%)13590(Top 90%)13590(Top 662%)
25.2M25.20 mi0.35 mi18274-10311450-3511450-3521819(Top 82%)12762(Top 84%)12762(Top 622%)
Finish26.22 mi1.02 mi18502-22811546-9611546-9622289(Top 84%)12990(Top 86%)12990(Top 633%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

18739

Males

11770

M50-54

11770

5K→10K

3.1 - 6.2 mi

Top 71%
×5story building
+79ft-138ft

Overall

18864

Males

11843

M50-54

11843

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

18739

Males

11770

M50-54

11770

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

17897

Males

11424

M50-54

11424

20K→Half

12.4 - 13.1 mi

Top 68%
×2story building
+19ft-37ft

Overall

18146

Males

11552

M50-54

11552

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

17491

Males

11195

M50-54

11195

25K→30K

15.5 - 18.6 mi

Top 61%
×9story building
+181ft-148ft

Overall

16211

Males

10573

M50-54

10573

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

16027

Males

10425

M50-54

10425

20M→21M

20.0 - 21.0 mi

Top 63%
×8story building
+106ft-24ft

Overall

16764

Males

10698

M50-54

10698

21M→35K

21.0 - 21.8 mi

Top 62%
×7story building
+17ft-86ft

Overall

16453

Males

10470

M50-54

10470

35K→23M

21.8 - 23.0 mi

Top 60%
×5story building
+23ft-63ft

Overall

15844

Males

10176

M50-54

10176

23M→24M

23.0 - 24.0 mi

Top 75%
×6story building
+12ft-82ft

Overall

19989

Males

11994

M50-54

11994

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

23618

Males

13590

M50-54

13590

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

21819

Males

12762

M50-54

12762

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2story building
+22ft-21ft

Overall

22289

Males

12990

M50-54

12990

Passing Analysis

Category:
Athletes Passed
2174
Passed By
1786
Net Change
+388
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18890
5K → 10K401325+76#18890#18814
10K → 15K207155+52#18814#18762
15K → 20K27959+220#18762#18542
20K → Half3717+20#18542#18522
Half → 25K22857+171#18522#18351
25K → 30K45719+438#18351#17913
30K → 20M18621+165#17913#17748
20M → 21M10652+54#17748#17694
21M → 35K7820+58#17694#17636
35K → 23M15332+121#17636#17515
23M → 24M21223-202#17515#17717
24M → 40K6460-454#17717#18171
40K → 25.2M7110-103#18171#18274
25.2M → Finish8236-228#18274#18502
TOTALS21741786+388
📊

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