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BOSTON MARATHON 2023

James Kelly

Bib: 1039•M

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 2%
Gender (Male)
#0 / 15176
Top 3%
Division (M18-39)
#0 / 5285
Top 7%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:04
Rank: #410
Start → 5K
5:49/mi
18:04 split
10K· 6.21 mi
35:53
Rank: #379 (+31)
5K → 10K
5:44/mi
17:49 split
15K· 9.32 mi
53:55
Rank: #374 (+5)
10K → 15K
5:48/mi
18:02 split
20K· 12.43 mi
1:12:00
Rank: #356 (+18)
15K → 20K
5:49/mi
18:05 split
Half· 13.11 mi
1:15:55
Rank: #352 (+4)
20K → Half
5:44/mi
3:55 split
25K· 15.53 mi
1:30:12
Rank: #349 (+3)
Half → 25K
5:53/mi
14:17 split
30K· 18.64 mi
1:48:42
Rank: #338 (+11)
25K → 30K
5:57/mi
18:30 split
20M
1:56:50
Rank: #331 (+7)
30K → 20M
5:59/mi
8:08 split
21M
2:03:06
Rank: #324 (+7)
20M → 21M
6:16/mi
6:16 split
35K· 21.75 mi
2:07:32
Rank: #322 (+2)
21M → 35K
5:56/mi
4:26 split
23M
2:15:20
Rank: #333 (-11)
35K → 23M
6:14/mi
7:48 split
24M
2:21:37
Rank: #347 (-14)
23M → 24M
6:17/mi
6:17 split
40K· 24.85 mi
2:27:44
Rank: #391 (-44)
24M → 40K
7:09/mi
6:07 split
25.2M
2:30:33
Rank: #418 (-27)
40K → 25.2M
8:10/mi
2:49 split
Finish· 26.22 mi
2:37:31
Rank: #460 (-42)
25.2M → Finish
6:50/mi
6:58 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:15:55
Pace5:47 /mi
2nd Half
Distance13.11 mi
Time1:21:36
Pace6:13 /mi
📊Positive Split: 7.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:2818:045:4918:04
5:49
-
10K
6.21 mi10:36:1735:535:4617:49
5:44
-0:05
15K
9.32 mi10:54:1953:555:4718:02
5:48
+0:04
20K
12.43 mi11:12:241:12:005:4818:05
5:49
+0:01
Half
13.11 mi11:16:191:15:555:473:55
5:44
-0:05
25K
15.53 mi11:30:361:30:125:4814:17
5:53
+0:09
30K
18.64 mi11:49:061:48:425:5018:30
5:57
+0:04
20M
20.00 mi11:57:141:56:505:508:08
5:59
+0:02
21M
21.00 mi12:03:302:03:065:526:16
6:16
+0:17
35K
21.75 mi12:07:562:07:325:524:26
5:56
-0:20
23M
23.00 mi12:15:442:15:205:537:48
6:14
+0:18
24M
24.00 mi12:22:012:21:375:546:17
6:17
+0:03
40K
24.85 mi12:28:082:27:445:576:07
7:09
+0:52
25.2M
25.20 mi12:30:572:30:335:582:49
8:10
+1:01
Finish
26.22 mi12:37:552:37:316:016:58
6:50
-1:20

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

5:44 /mi

Average Pace

6:01 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:15:20

86% of race

Time at Slower Pace

22:11

14% of race

Average Pace: 6:00 /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 mi10:18:2818:045:4918:04
5:49
#410
10K
6.21 mi10:36:1735:535:4617:49
5:44
#379
15K
9.32 mi10:54:1953:555:4718:02
5:48
#374
20K
12.43 mi11:12:241:12:005:4818:05
5:49
#356
Half
13.11 mi11:16:191:15:555:473:55
5:44
#352
25K
15.53 mi11:30:361:30:125:4814:17
5:53
#349
30K
18.64 mi11:49:061:48:425:5018:30
5:57
#338
20M
20.00 mi11:57:141:56:505:508:08
5:59
#331
21M
21.00 mi12:03:302:03:065:526:16
6:16
#324
35K
21.75 mi12:07:562:07:325:524:26
5:56
#322
23M
23.00 mi12:15:442:15:205:537:48
6:14
#333
24M
24.00 mi12:22:012:21:375:546:17
6:17
#347
40K
24.85 mi12:28:082:27:445:576:07
7:09
#391
25.2M
25.20 mi12:30:572:30:335:582:49
8:10
#418
Finish
26.22 mi12:37:552:37:316:016:58
6:50
#460
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi410375375378(Top 1%)344(Top 2%)344(Top 7%)
10K6.21 mi3.10 mi379+31344+31344+31355(Top 1%)320(Top 2%)320(Top 6%)
15K9.32 mi3.11 mi374+5340+4340+4378(Top 1%)344(Top 2%)344(Top 7%)
20K12.43 mi3.11 mi356+18323+17323+17332(Top 1%)300(Top 2%)300(Top 6%)
Half13.11 mi0.68 mi352+4319+4319+4320(Top 1%)296(Top 2%)296(Top 6%)
25K15.53 mi2.42 mi349+3317+2317+2380(Top 1%)352(Top 2%)352(Top 7%)
30K18.64 mi3.11 mi338+11306+11306+11334(Top 1%)307(Top 2%)307(Top 6%)
20M20.00 mi1.36 mi331+7299+7299+7333(Top 1%)308(Top 2%)308(Top 6%)
21M21.00 mi1.00 mi324+7293+6293+6311(Top 1%)285(Top 2%)285(Top 5%)
35K21.75 mi0.75 mi322+2291+2291+2544(Top 2%)506(Top 3%)506(Top 10%)
23M23.00 mi1.25 mi333-11302-11302-11665(Top 2%)627(Top 4%)627(Top 12%)
24M24.00 mi1.00 mi347-14316-14316-141289(Top 5%)1219(Top 8%)1219(Top 23%)
40K24.85 mi0.85 mi391-44358-42358-424599(Top 17%)4050(Top 27%)4050(Top 77%)
25.2M25.20 mi0.35 mi418-27383-25383-257353(Top 28%)5753(Top 38%)5753(Top 109%)
Finish26.22 mi1.02 mi460-42425-42425-424241(Top 16%)3717(Top 24%)3717(Top 70%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 1%
×21story building
+97ft-345ft

Overall

378

Males

344

M18-39

344

5K→10K

3.1 - 6.2 mi

Top 1%
×5story building
+79ft-138ft

Overall

355

Males

320

M18-39

320

10K→15K

6.2 - 9.3 mi

Top 1%
×3story building
+67ft-78ft

Overall

378

Males

344

M18-39

344

15K→20K

9.3 - 12.4 mi

Top 1%
×5story building
+106ft-86ft

Overall

332

Males

300

M18-39

300

20K→Half

12.4 - 13.1 mi

Top 1%
×2story building
+19ft-37ft

Overall

320

Males

296

M18-39

296

Half→25K

13.1 - 15.5 mi

Top 1%
×4story building
+66ft-88ft

Overall

380

Males

352

M18-39

352

25K→30K

15.5 - 18.6 mi

Top 1%
×9story building
+181ft-148ft

Overall

334

Males

307

M18-39

307

30K→20M

18.6 - 20.0 mi

Top 1%
×5story building
+64ft-50ft

Overall

333

Males

308

M18-39

308

20M→21M

20.0 - 21.0 mi

Top 1%
×8story building
+106ft-24ft

Overall

311

Males

285

M18-39

285

21M→35K

21.0 - 21.8 mi

Top 2%
×7story building
+17ft-86ft

Overall

544

Males

506

M18-39

506

35K→23M

21.8 - 23.0 mi

Top 2%
×5story building
+23ft-63ft

Overall

665

Males

627

M18-39

627

23M→24M

23.0 - 24.0 mi

Top 5%
×6story building
+12ft-82ft

Overall

1289

Males

1219

M18-39

1219

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4599

Males

4050

M18-39

4050

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7353

Males

5753

M18-39

5753

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2story building
+22ft-21ft

Overall

4241

Males

3717

M18-39

3717

Passing Analysis

Category:
Athletes Passed
141
Passed By
191
Net Change
-50
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#410
5K → 10K398+31#410#379
10K → 15K138+5#379#374
15K → 20K213+18#374#356
20K → Half40+4#356#352
Half → 25K118+3#352#349
25K → 30K187+11#349#338
30K → 20M103+7#338#331
20M → 21M81+7#331#324
21M → 35K42+2#324#322
35K → 23M617-11#322#333
23M → 24M317-14#333#347
24M → 40K246-44#347#391
40K → 25.2M229-27#391#418
25.2M → Finish042-42#418#460
TOTALS141191-50
📊

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