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BOSTON MARATHON 2023

Stephen Carleton

Bib: 27924•M

CT

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
8:28/mi
26:18
↑ 97↓ 3451.5%
10K· 6.21 mi
8:20/mi
52:10
↑ 79↓ 1380.4%
15K· 9.32 mi
8:28/mi
1:18:27
↑ 67↓ 78
20K· 12.43 mi
8:21/mi
1:44:25
↑ 106↓ 860.1%
Half· 13.11 mi
8:12/mi
1:50:01
↑ 19↓ 370.5%
25K· 15.53 mi
8:31/mi
2:10:41
↑ 66↓ 880.2%
30K· 18.64 mi
8:49/mi
2:38:06
↑ 181↓ 1480.2%
20M
9:16/mi
2:50:42
↑ 64↓ 500.2%
21M
9:46/mi
3:00:28
↑ 106↓ 241.6%
35K· 21.75 mi
9:19/mi
3:07:26
↑ 17↓ 861.7%
23M
9:13/mi
3:18:58
↑ 23↓ 630.6%
24M
9:12/mi
3:28:10
↓ 821.3%
40K· 24.85 mi
9:35/mi
3:36:22
↓ 200.3%
25.2M
9:52/mi
3:39:46
↑ 13↓ 160.2%
Finish· 26.22 mi
8:47/mi
3:48:43
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:01
Pace8:24 /mi
2nd Half
Distance13.11 mi
Time1:58:42
Pace9:03 /mi
📊Positive Split: 7.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:2226:188:2826:18
8:28
-
10K
6.21 mi12:09:1452:108:2425:52
8:20
-0:08
15K
9.32 mi12:35:311:18:278:2526:17
8:28
+0:08
20K
12.43 mi13:01:291:44:258:2425:58
8:21
-0:07
Half
13.11 mi13:07:051:50:018:245:36
8:12
-0:09
25K
15.53 mi13:27:452:10:418:2520:40
8:31
+0:19
30K
18.64 mi13:55:102:38:068:2927:25
8:49
+0:18
20M
20.00 mi14:07:462:50:428:3212:36
9:16
+0:27
21M
21.00 mi14:17:323:00:288:369:46
9:46
+0:30
35K
21.75 mi14:24:303:07:268:376:58
9:19
-0:27
23M
23.00 mi14:36:023:18:588:3911:32
9:13
-0:06
24M
24.00 mi14:45:143:28:108:409:12
9:12
-0:01
40K
24.85 mi14:53:263:36:228:428:12
9:35
+0:23
25.2M
25.20 mi14:56:503:39:468:433:24
9:52
+0:17
Finish
26.22 mi15:05:473:48:438:448:57
8:47
-1:05

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

8:12 /mi

Average Pace

8:44 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:10:41

57% of race

Time at Steady Pace

36:22

16% of race

Time at Slower Pace

1:01:40

27% 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 mi11:43:2226:188:2826:18
8:28
#17306
10K
6.21 mi12:09:1452:108:2425:52
8:20
#17179
15K
9.32 mi12:35:311:18:278:2526:17
8:28
#17306
20K
12.43 mi13:01:291:44:258:2425:58
8:21
#16958
Half
13.11 mi13:07:051:50:018:245:36
8:12
#16891
25K
15.53 mi13:27:452:10:418:2520:40
8:31
#16814
30K
18.64 mi13:55:102:38:068:2927:25
8:49
#16655
20M
20.00 mi14:07:462:50:428:3212:36
9:16
#16746
21M
21.00 mi14:17:323:00:288:369:46
9:46
#16761
35K
21.75 mi14:24:303:07:268:376:58
9:19
#16867
23M
23.00 mi14:36:023:18:588:3911:32
9:13
#16873
24M
24.00 mi14:45:143:28:108:409:12
9:12
#16941
40K
24.85 mi14:53:263:36:228:428:12
9:35
#17035
25.2M
25.20 mi14:56:503:39:468:433:24
9:52
#17031
Finish
26.22 mi15:05:473:48:438:448:57
8:47
#17032
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi17306111551115517526(Top 66%)11276(Top 74%)11276(Top 550%)
10K6.21 mi3.10 mi17179+12711121+3411121+3417094(Top 64%)11146(Top 73%)11146(Top 543%)
15K9.32 mi3.11 mi17306-12711187-6611187-6617526(Top 66%)11276(Top 74%)11276(Top 550%)
20K12.43 mi3.11 mi16958+34811034+15311034+15315984(Top 60%)10632(Top 70%)10632(Top 518%)
Half13.11 mi0.68 mi16891+6711009+2511009+2515841(Top 60%)10629(Top 70%)10629(Top 518%)
25K15.53 mi2.42 mi16814+7710949+6010949+6016343(Top 61%)10683(Top 70%)10683(Top 521%)
30K18.64 mi3.11 mi16655+15910855+9410855+9416209(Top 61%)10571(Top 70%)10571(Top 515%)
20M20.00 mi1.36 mi16746-9110891-3610891-3617877(Top 67%)11176(Top 74%)11176(Top 545%)
21M21.00 mi1.00 mi16761-1510896-510896-517103(Top 64%)10833(Top 71%)10833(Top 528%)
35K21.75 mi0.75 mi16867-10610932-3610932-3619179(Top 72%)11662(Top 77%)11662(Top 568%)
23M23.00 mi1.25 mi16873-610905+2710905+2717101(Top 64%)10736(Top 71%)10736(Top 523%)
24M24.00 mi1.00 mi16941-6810915-1010915-1018046(Top 68%)11097(Top 73%)11097(Top 541%)
40K24.85 mi0.85 mi17035-9410932-1710932-1718623(Top 70%)11313(Top 75%)11313(Top 551%)
25.2M25.20 mi0.35 mi17031+410928+410928+416759(Top 63%)10445(Top 69%)10445(Top 509%)
Finish26.22 mi1.02 mi17032-110917+1110917+1116922(Top 64%)10573(Top 70%)10573(Top 515%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21story building
+97ft-345ft

Overall

17526

Males

11276

M50-54

11276

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

17094

Males

11146

M50-54

11146

10K→15K

6.2 - 9.3 mi

Top 66%
×3story building
+67ft-78ft

Overall

17526

Males

11276

M50-54

11276

15K→20K

9.3 - 12.4 mi

Top 60%
×5story building
+106ft-86ft

Overall

15984

Males

10632

M50-54

10632

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

15841

Males

10629

M50-54

10629

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

16343

Males

10683

M50-54

10683

25K→30K

15.5 - 18.6 mi

Top 61%
×9story building
+181ft-148ft

Overall

16209

Males

10571

M50-54

10571

30K→20M

18.6 - 20.0 mi

Top 67%
×5story building
+64ft-50ft

Overall

17877

Males

11176

M50-54

11176

20M→21M

20.0 - 21.0 mi

Top 64%
×8story building
+106ft-24ft

Overall

17103

Males

10833

M50-54

10833

21M→35K

21.0 - 21.8 mi

Top 72%
×7story building
+17ft-86ft

Overall

19179

Males

11662

M50-54

11662

35K→23M

21.8 - 23.0 mi

Top 64%
×5story building
+23ft-63ft

Overall

17101

Males

10736

M50-54

10736

23M→24M

23.0 - 24.0 mi

Top 68%
×6story building
+12ft-82ft

Overall

18046

Males

11097

M50-54

11097

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

18623

Males

11313

M50-54

11313

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

16759

Males

10445

M50-54

10445

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2story building
+22ft-21ft

Overall

16922

Males

10573

M50-54

10573

Passing Analysis

Category:
Athletes Passed
1787
Passed By
1513
Net Change
+274
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17306
5K → 10K384257+127#17306#17179
10K → 15K144271-127#17179#17306
15K → 20K39042+348#17306#16958
20K → Half747+67#16958#16891
Half → 25K15881+77#16891#16814
25K → 30K24182+159#16814#16655
30K → 20M54145-91#16655#16746
20M → 21M7792-15#16746#16761
21M → 35K21127-106#16761#16867
35K → 23M7985-6#16867#16873
23M → 24M42110-68#16873#16941
24M → 40K34128-94#16941#17035
40K → 25.2M2420+4#17035#17031
25.2M → Finish6566-1#17031#17032
TOTALS17871513+274
📊

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