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BOSTON MARATHON 2023

John Ewan

Bib: 15523•M

CA

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

Start
0:00:00
Race begins
5K· 3.11 mi
26:57
Rank: #18706
Start → 5K
26:57 | 8:40/mi
10K· 6.21 mi
54:33
Rank: #19560 (-854)
5K → 10K
27:36 | 8:53/mi
15K· 9.32 mi
1:22:45
Rank: #20021 (-461)
10K → 15K
28:12 | 9:05/mi
20K· 12.43 mi
1:51:16
Rank: #20126 (-105)
15K → 20K
28:31 | 9:11/mi
Half· 13.11 mi
1:57:09
Rank: #20059 (+67)
20K → Half
5:53 | 8:37/mi
25K· 15.53 mi
2:18:59
Rank: #19870 (+189)
Half → 25K
21:50 | 9:00/mi
30K· 18.64 mi
2:47:02
Rank: #19402 (+468)
25K → 30K
28:03 | 9:02/mi
20M
2:59:30
Rank: #19245 (+157)
30K → 20M
12:28 | 9:10/mi
21M
3:08:56
Rank: #19039 (+206)
20M → 21M
9:26 | 9:26/mi
35K· 21.75 mi
3:15:16
Rank: #18901 (+138)
21M → 35K
6:20 | 8:28/mi
23M
3:26:16
Rank: #18655 (+246)
35K → 23M
11:00 | 8:47/mi
24M
3:34:39
Rank: #18474 (+181)
23M → 24M
8:23 | 8:23/mi
40K· 24.85 mi
3:42:03
Rank: #18325 (+149)
24M → 40K
7:24 | 8:39/mi
25.2M
3:45:11
Rank: #18248 (+77)
40K → 25.2M
3:08 | 9:05/mi
Finish· 26.22 mi
3:52:58
Rank: #17969 (+279)
25.2M → Finish
7:47 | 7:38/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:57:09
Pace8:56 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:55:49
Pace8:50 /mi
📊Negative Split: 1.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:5426:578:4026:57
8:40
-
10K
6.21 mi11:24:3054:338:4727:36
8:53
+0:13
15K
9.32 mi11:52:421:22:458:5328:12
9:05
+0:12
20K
12.43 mi12:21:131:51:168:5728:31
9:11
+0:06
Half
13.11 mi12:27:061:57:098:565:53
8:37
-0:34
25K
15.53 mi12:48:562:18:598:5721:50
9:00
+0:23
30K
18.64 mi13:16:592:47:028:5828:03
9:02
+0:02
20M
20.00 mi13:29:272:59:308:5812:28
9:10
+0:08
21M
21.00 mi13:38:533:08:569:009:26
9:26
+0:16
35K
21.75 mi13:45:133:15:168:596:20
8:28
-0:58
23M
23.00 mi13:56:133:26:168:5811:00
8:47
+0:19
24M
24.00 mi14:04:363:34:398:578:23
8:23
-0:24
40K
24.85 mi14:12:003:42:038:567:24
8:39
+0:16
25.2M
25.20 mi14:15:083:45:118:563:08
9:05
+0:26
Finish
26.22 mi14:22:553:52:588:547:47
7:38
-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

7:38 /mi

Average Pace

8:54 /mi

Slowest Pace

9:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:02:44

27% of race

Time at Steady Pace

1:59:49

51% of race

Time at Slower Pace

50:25

22% of race

Average Pace: 8:53 /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 mi10:56:5426:578:4026:57
8:40
#18706
10K
6.21 mi11:24:3054:338:4727:36
8:53
#19560
15K
9.32 mi11:52:421:22:458:5328:12
9:05
#20021
20K
12.43 mi12:21:131:51:168:5728:31
9:11
#20126
Half
13.11 mi12:27:061:57:098:565:53
8:37
#20059
25K
15.53 mi12:48:562:18:598:5721:50
9:00
#19870
30K
18.64 mi13:16:592:47:028:5828:03
9:02
#19402
20M
20.00 mi13:29:272:59:308:5812:28
9:10
#19245
21M
21.00 mi13:38:533:08:569:009:26
9:26
#19039
35K
21.75 mi13:45:133:15:168:596:20
8:28
#18901
23M
23.00 mi13:56:133:26:168:5811:00
8:47
#18655
24M
24.00 mi14:04:363:34:398:578:23
8:23
#18474
40K
24.85 mi14:12:003:42:038:567:24
8:39
#18325
25.2M
25.20 mi14:15:083:45:118:563:08
9:05
#18248
Finish
26.22 mi14:22:553:52:588:547:47
7:38
#17969
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi18706116801168020836(Top 78%)12671(Top 83%)12671(Top 617%)
10K6.21 mi3.10 mi19560-85412032-35212032-35220346(Top 76%)12428(Top 82%)12428(Top 606%)
15K9.32 mi3.11 mi20021-46112247-21512247-21520836(Top 78%)12671(Top 83%)12671(Top 617%)
20K12.43 mi3.11 mi20126-10512320-7312320-7320474(Top 77%)12505(Top 82%)12505(Top 609%)
Half13.11 mi0.68 mi20059+6712287+3312287+3318426(Top 69%)11665(Top 77%)11665(Top 568%)
25K15.53 mi2.42 mi19870+18912205+8212205+8218965(Top 71%)11831(Top 78%)11831(Top 577%)
30K18.64 mi3.11 mi19402+46812010+19512010+19517321(Top 65%)11046(Top 73%)11046(Top 538%)
20M20.00 mi1.36 mi19245+15711926+8411926+8417416(Top 65%)10993(Top 72%)10993(Top 536%)
21M21.00 mi1.00 mi19039+20611826+10011826+10015641(Top 59%)10202(Top 67%)10202(Top 497%)
35K21.75 mi0.75 mi18901+13811761+6511761+6515102(Top 57%)9928(Top 65%)9928(Top 484%)
23M23.00 mi1.25 mi18655+24611647+11411647+11414906(Top 56%)9776(Top 64%)9776(Top 476%)
24M24.00 mi1.00 mi18474+18111561+8611561+8613762(Top 52%)9221(Top 61%)9221(Top 449%)
40K24.85 mi0.85 mi18325+14911476+8511476+8514266(Top 54%)9365(Top 62%)9365(Top 456%)
25.2M25.20 mi0.35 mi18248+7711439+3711439+3713000(Top 49%)8780(Top 58%)8780(Top 428%)
Finish26.22 mi1.02 mi17969+27911309+13011309+1309553(Top 36%)7059(Top 47%)7059(Top 344%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21stories
+97ft-345ft

Overall

20836

Males

12671

M50-54

12671

5K→10K

3.1 - 6.2 mi

Top 76%
×5stories
+79ft-138ft

Overall

20346

Males

12428

M50-54

12428

10K→15K

6.2 - 9.3 mi

Top 78%
×3stories
+67ft-78ft

Overall

20836

Males

12671

M50-54

12671

15K→20K

9.3 - 12.4 mi

Top 77%
×5stories
+106ft-86ft

Overall

20474

Males

12505

M50-54

12505

20K→Half

12.4 - 13.1 mi

Top 69%
×2stories
+19ft-37ft

Overall

18426

Males

11665

M50-54

11665

Half→25K

13.1 - 15.5 mi

Top 71%
×4stories
+66ft-88ft

Overall

18965

Males

11831

M50-54

11831

25K→30K

15.5 - 18.6 mi

Top 65%
×9stories
+181ft-148ft

Overall

17321

Males

11046

M50-54

11046

30K→20M

18.6 - 20.0 mi

Top 65%
×5stories
+64ft-50ft

Overall

17416

Males

10993

M50-54

10993

20M→21M

20.0 - 21.0 mi

Top 59%
×8stories
+106ft-24ft

Overall

15641

Males

10202

M50-54

10202

21M→35K

21.0 - 21.8 mi

Top 57%
×7stories
+17ft-86ft

Overall

15102

Males

9928

M50-54

9928

35K→23M

21.8 - 23.0 mi

Top 56%
×5stories
+23ft-63ft

Overall

14906

Males

9776

M50-54

9776

23M→24M

23.0 - 24.0 mi

Top 52%
×6stories
+12ft-82ft

Overall

13762

Males

9221

M50-54

9221

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

14266

Males

9365

M50-54

9365

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

13000

Males

8780

M50-54

8780

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2stories
+22ft-21ft

Overall

9553

Males

7059

M50-54

7059

Passing Analysis

Category:
Athletes Passed
2524
Passed By
1787
Net Change
+737
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18706
5K → 10K84938-854#18706#19560
10K → 15K53514-461#19560#20021
15K → 20K132237-105#20021#20126
20K → Half725+67#20126#20059
Half → 25K23142+189#20059#19870
25K → 30K48113+468#19870#19402
30K → 20M17013+157#19402#19245
20M → 21M2159+206#19245#19039
21M → 35K1391+138#19039#18901
35K → 23M2526+246#18901#18655
23M → 24M1832+181#18655#18474
24M → 40K1534+149#18474#18325
40K → 25.2M792+77#18325#18248
25.2M → Finish2801+279#18248#17969
TOTALS25241787+737
📊

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