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BOSTON MARATHON 2023

James Whelan

Bib: 26724•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
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
9:23/mi
29:08
↑ 97↓ 3451.5%
10K· 6.21 mi
8:44/mi
56:17
↑ 79↓ 1380.4%
15K· 9.32 mi
9:07/mi
1:24:35
↑ 67↓ 78
20K· 12.43 mi
9:26/mi
1:53:52
↑ 106↓ 860.1%
Half· 13.11 mi
9:32/mi
2:00:22
↑ 19↓ 370.5%
25K· 15.53 mi
10:29/mi
2:25:47
↑ 66↓ 880.2%
30K· 18.64 mi
10:49/mi
2:59:24
↑ 181↓ 1480.2%
20M
11:53/mi
3:15:33
↑ 64↓ 500.2%
21M
12:10/mi
3:27:43
↑ 106↓ 241.6%
35K· 21.75 mi
11:20/mi
3:36:12
↑ 17↓ 861.7%
23M
12:01/mi
3:51:15
↑ 23↓ 630.6%
24M
12:57/mi
4:04:12
↓ 821.3%
40K· 24.85 mi
12:25/mi
4:14:49
↓ 200.3%
25.2M
12:40/mi
4:19:11
↑ 13↓ 160.2%
Finish· 26.22 mi
9:00/mi
4:28:21
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:22
Pace9:11 /mi
2nd Half
Distance13.11 mi
Time2:27:59
Pace11:17 /mi
📊Positive Split: 22.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:4429:089:2329:08
9:23
-
10K
6.21 mi12:12:5356:179:0327:09
8:44
-0:39
15K
9.32 mi12:41:111:24:359:0428:18
9:07
+0:23
20K
12.43 mi13:10:281:53:529:1029:17
9:26
+0:19
Half
13.11 mi13:16:582:00:229:116:30
9:32
+0:06
25K
15.53 mi13:42:232:25:479:2325:25
10:29
+0:57
30K
18.64 mi14:16:002:59:249:3733:37
10:49
+0:20
20M
20.00 mi14:32:093:15:339:4716:09
11:53
+1:04
21M
21.00 mi14:44:193:27:439:5312:10
12:10
+0:17
35K
21.75 mi14:52:483:36:129:568:29
11:20
-0:50
23M
23.00 mi15:07:513:51:1510:0315:03
12:01
+0:41
24M
24.00 mi15:20:484:04:1210:1112:57
12:57
+0:56
40K
24.85 mi15:31:254:14:4910:1510:37
12:25
-0:32
25.2M
25.20 mi15:35:474:19:1110:174:22
12:40
+0:15
Finish
26.22 mi15:44:574:28:2110:159:10
9:00
-3:40

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

8:44 /mi

Average Pace

10:15 /mi

Slowest Pace

12:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:32

48% of race

Time at Steady Pace

1:07:31

25% of race

Time at Slower Pace

1:11:18

27% of race

Average Pace: 10:14 /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 mi11:45:4429:089:2329:08
9:23
#21744
10K
6.21 mi12:12:5356:179:0327:09
8:44
#20891
15K
9.32 mi12:41:111:24:359:0428:18
9:07
#20916
20K
12.43 mi13:10:281:53:529:1029:17
9:26
#21047
Half
13.11 mi13:16:582:00:229:116:30
9:32
#21122
25K
15.53 mi13:42:232:25:479:2325:25
10:29
#21551
30K
18.64 mi14:16:002:59:249:3733:37
10:49
#21836
20M
20.00 mi14:32:093:15:339:4716:09
11:53
#22103
21M
21.00 mi14:44:193:27:439:5312:10
12:10
#22162
35K
21.75 mi14:52:483:36:129:568:29
11:20
#22228
23M
23.00 mi15:07:513:51:1510:0315:03
12:01
#22370
24M
24.00 mi15:20:484:04:1210:1112:57
12:57
#22582
40K
24.85 mi15:31:254:14:4910:1510:37
12:25
#22689
25.2M
25.20 mi15:35:474:19:1110:174:22
12:40
#22701
Finish
26.22 mi15:44:574:28:2110:159:10
9:00
#22587
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21744129611296120973(Top 79%)12736(Top 84%)12736(Top 241%)
10K6.21 mi3.10 mi20891+85312613+34812613+34819627(Top 74%)12143(Top 80%)12143(Top 230%)
15K9.32 mi3.11 mi20916-2512657-4412657-4420973(Top 79%)12736(Top 84%)12736(Top 241%)
20K12.43 mi3.11 mi21047-13112724-6712724-6721311(Top 80%)12882(Top 85%)12882(Top 244%)
Half13.11 mi0.68 mi21122-7512768-4412768-4422168(Top 83%)13278(Top 87%)13278(Top 251%)
25K15.53 mi2.42 mi21551-42912955-18712955-18723164(Top 87%)13669(Top 90%)13669(Top 259%)
30K18.64 mi3.11 mi21836-28513073-11813073-11822826(Top 86%)13438(Top 89%)13438(Top 254%)
20M20.00 mi1.36 mi22103-26713177-10413177-10424052(Top 90%)13921(Top 92%)13921(Top 263%)
21M21.00 mi1.00 mi22162-5913197-2013197-2022987(Top 86%)13422(Top 88%)13422(Top 254%)
35K21.75 mi0.75 mi22228-6613219-2213219-2223861(Top 90%)13776(Top 91%)13776(Top 261%)
23M23.00 mi1.25 mi22370-14213267-4813267-4824031(Top 90%)13861(Top 91%)13861(Top 262%)
24M24.00 mi1.00 mi22582-21213350-8313350-8325431(Top 96%)14511(Top 96%)14511(Top 275%)
40K24.85 mi0.85 mi22689-10713391-4113391-4124346(Top 91%)13960(Top 92%)13960(Top 264%)
25.2M25.20 mi0.35 mi22701-1213394-313394-323506(Top 88%)13549(Top 89%)13549(Top 256%)
Finish26.22 mi1.02 mi22587+11413329+6513329+6517956(Top 67%)11052(Top 73%)11052(Top 209%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21story building
+97ft-345ft

Overall

20973

Males

12736

M18-39

12736

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

19627

Males

12143

M18-39

12143

10K→15K

6.2 - 9.3 mi

Top 79%
×3story building
+67ft-78ft

Overall

20973

Males

12736

M18-39

12736

15K→20K

9.3 - 12.4 mi

Top 80%
×5story building
+106ft-86ft

Overall

21311

Males

12882

M18-39

12882

20K→Half

12.4 - 13.1 mi

Top 83%
×2story building
+19ft-37ft

Overall

22168

Males

13278

M18-39

13278

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

23164

Males

13669

M18-39

13669

25K→30K

15.5 - 18.6 mi

Top 86%
×9story building
+181ft-148ft

Overall

22826

Males

13438

M18-39

13438

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

24052

Males

13921

M18-39

13921

20M→21M

20.0 - 21.0 mi

Top 86%
×8story building
+106ft-24ft

Overall

22987

Males

13422

M18-39

13422

21M→35K

21.0 - 21.8 mi

Top 90%
×7story building
+17ft-86ft

Overall

23861

Males

13776

M18-39

13776

35K→23M

21.8 - 23.0 mi

Top 90%
×5story building
+23ft-63ft

Overall

24031

Males

13861

M18-39

13861

23M→24M

23.0 - 24.0 mi

Top 96%
×6story building
+12ft-82ft

Overall

25431

Males

14511

M18-39

14511

24M→40K

24.0 - 24.9 mi

Top 91%
×1story
+6ft-20ft

Overall

24346

Males

13960

M18-39

13960

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

23506

Males

13549

M18-39

13549

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2story building
+22ft-21ft

Overall

17956

Males

11052

M18-39

11052

Passing Analysis

Category:
Athletes Passed
1505
Passed By
2348
Net Change
-843
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21744
5K → 10K89643+853#21744#20891
10K → 15K167192-25#20891#20916
15K → 20K112243-131#20916#21047
20K → Half1186-75#21047#21122
Half → 25K19448-429#21122#21551
25K → 30K69354-285#21551#21836
30K → 20M19286-267#21836#22103
20M → 21M3796-59#22103#22162
21M → 35K1581-66#22162#22228
35K → 23M20162-142#22228#22370
23M → 24M6218-212#22370#22582
24M → 40K8115-107#22582#22689
40K → 25.2M1022-12#22689#22701
25.2M → Finish1162+114#22701#22587
TOTALS15052348-843
📊

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