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BOSTON MARATHON 2023

James Dwyer

Bib: 27089•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 25%
Gender (Male)
#0 / 15176
Top 38%
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
8:16/mi
25:40
↑ 97↓ 3451.5%
10K· 6.21 mi
7:13/mi
48:06
↑ 79↓ 1380.4%
15K· 9.32 mi
7:08/mi
1:10:17
↑ 67↓ 78
20K· 12.43 mi
7:11/mi
1:32:35
↑ 106↓ 860.1%
Half· 13.11 mi
7:07/mi
1:37:26
↑ 19↓ 370.5%
25K· 15.53 mi
7:16/mi
1:55:03
↑ 66↓ 880.2%
30K· 18.64 mi
7:16/mi
2:17:37
↑ 181↓ 1480.2%
20M
7:02/mi
2:27:11
↑ 64↓ 500.2%
21M
7:24/mi
2:34:35
↑ 106↓ 241.6%
35K· 21.75 mi
7:00/mi
2:39:49
↑ 17↓ 861.7%
23M
7:09/mi
2:48:46
↑ 23↓ 630.6%
24M
6:56/mi
2:55:42
↓ 821.3%
40K· 24.85 mi
7:00/mi
3:01:41
↓ 200.3%
25.2M
7:29/mi
3:04:16
↑ 13↓ 160.2%
Finish· 26.22 mi
6:31/mi
3:10:54
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:37:26
Pace7:26 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:33:28
Pace7:08 /mi
📊Negative Split: 4.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:4325:408:1625:40
8:16
-
10K
6.21 mi12:05:0948:067:4422:26
7:13
-1:03
15K
9.32 mi12:27:201:10:177:3222:11
7:08
-0:05
20K
12.43 mi12:49:381:32:357:2722:18
7:11
+0:03
Half
13.11 mi12:54:291:37:267:264:51
7:07
-0:04
25K
15.53 mi13:12:061:55:037:2417:37
7:16
+0:09
30K
18.64 mi13:34:402:17:377:2322:34
7:16
0:00
20M
20.00 mi13:44:142:27:117:229:34
7:02
-0:14
21M
21.00 mi13:51:382:34:357:227:24
7:24
+0:22
35K
21.75 mi13:56:522:39:497:215:14
7:00
-0:24
23M
23.00 mi14:05:492:48:467:208:57
7:09
+0:09
24M
24.00 mi14:12:452:55:427:196:56
6:56
-0:13
40K
24.85 mi14:18:443:01:417:195:59
7:00
+0:04
25.2M
25.20 mi14:21:193:04:167:192:35
7:29
+0:29
Finish
26.22 mi14:27:573:10:547:176:38
6:31
-0:58

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

6:31 /mi

Average Pace

7:17 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

13:34

7% of race

Time at Steady Pace

2:21:41

74% of race

Time at Slower Pace

35:39

19% of race

Average Pace: 7:17 /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 mi11:42:4325:408:1625:40
8:16
#15884
10K
6.21 mi12:05:0948:067:4422:26
7:13
#12187
15K
9.32 mi12:27:201:10:177:3222:11
7:08
#10416
20K
12.43 mi12:49:381:32:357:2722:18
7:11
#9409
Half
13.11 mi12:54:291:37:267:264:51
7:07
#9265
25K
15.53 mi13:12:061:55:037:2417:37
7:16
#8871
30K
18.64 mi13:34:402:17:377:2322:34
7:16
#8229
20M
20.00 mi13:44:142:27:117:229:34
7:02
#7857
21M
21.00 mi13:51:382:34:357:227:24
7:24
#7601
35K
21.75 mi13:56:522:39:497:215:14
7:00
#7494
23M
23.00 mi14:05:492:48:467:208:57
7:09
#7265
24M
24.00 mi14:12:452:55:427:196:56
6:56
#7089
40K
24.85 mi14:18:443:01:417:195:59
7:00
#6916
25.2M
25.20 mi14:21:193:04:167:192:35
7:29
#6834
Finish
26.22 mi14:27:573:10:547:176:38
6:31
#6615
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1588410657106577395(Top 28%)6525(Top 43%)6525(Top 123%)
10K6.21 mi3.10 mi12187+36979197+14609197+14608237(Top 31%)7105(Top 47%)7105(Top 134%)
15K9.32 mi3.11 mi10416+17718381+8168381+8167395(Top 28%)6525(Top 43%)6525(Top 123%)
20K12.43 mi3.11 mi9409+10077800+5817800+5816947(Top 26%)6170(Top 41%)6170(Top 117%)
Half13.11 mi0.68 mi9265+1447705+957705+957180(Top 27%)6349(Top 42%)6349(Top 120%)
25K15.53 mi2.42 mi8871+3947463+2427463+2427046(Top 26%)6186(Top 41%)6186(Top 117%)
30K18.64 mi3.11 mi8229+6427017+4467017+4465844(Top 22%)5258(Top 35%)5258(Top 99%)
20M20.00 mi1.36 mi7857+3726766+2516766+2514288(Top 16%)3959(Top 26%)3959(Top 75%)
21M21.00 mi1.00 mi7601+2566584+1826584+1824135(Top 16%)3804(Top 25%)3804(Top 72%)
35K21.75 mi0.75 mi7494+1076499+856499+855331(Top 20%)4759(Top 31%)4759(Top 90%)
23M23.00 mi1.25 mi7265+2296331+1686331+1684566(Top 17%)4138(Top 27%)4138(Top 78%)
24M24.00 mi1.00 mi7089+1766195+1366195+1364357(Top 16%)3949(Top 26%)3949(Top 75%)
40K24.85 mi0.85 mi6916+1736059+1366059+1363872(Top 15%)3489(Top 23%)3489(Top 66%)
25.2M25.20 mi0.35 mi6834+825994+655994+653907(Top 15%)3497(Top 23%)3497(Top 66%)
Finish26.22 mi1.02 mi6615+2195826+1685826+1682563(Top 10%)2357(Top 16%)2357(Top 45%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21story building
+97ft-345ft

Overall

7395

Males

6525

M18-39

6525

5K→10K

3.1 - 6.2 mi

Top 31%
×5story building
+79ft-138ft

Overall

8237

Males

7105

M18-39

7105

10K→15K

6.2 - 9.3 mi

Top 28%
×3story building
+67ft-78ft

Overall

7395

Males

6525

M18-39

6525

15K→20K

9.3 - 12.4 mi

Top 26%
×5story building
+106ft-86ft

Overall

6947

Males

6170

M18-39

6170

20K→Half

12.4 - 13.1 mi

Top 27%
×2story building
+19ft-37ft

Overall

7180

Males

6349

M18-39

6349

Half→25K

13.1 - 15.5 mi

Top 26%
×4story building
+66ft-88ft

Overall

7046

Males

6186

M18-39

6186

25K→30K

15.5 - 18.6 mi

Top 22%
×9story building
+181ft-148ft

Overall

5844

Males

5258

M18-39

5258

30K→20M

18.6 - 20.0 mi

Top 16%
×5story building
+64ft-50ft

Overall

4288

Males

3959

M18-39

3959

20M→21M

20.0 - 21.0 mi

Top 16%
×8story building
+106ft-24ft

Overall

4135

Males

3804

M18-39

3804

21M→35K

21.0 - 21.8 mi

Top 20%
×7story building
+17ft-86ft

Overall

5331

Males

4759

M18-39

4759

35K→23M

21.8 - 23.0 mi

Top 17%
×5story building
+23ft-63ft

Overall

4566

Males

4138

M18-39

4138

23M→24M

23.0 - 24.0 mi

Top 16%
×6story building
+12ft-82ft

Overall

4357

Males

3949

M18-39

3949

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

3872

Males

3489

M18-39

3489

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

3907

Males

3497

M18-39

3497

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2story building
+22ft-21ft

Overall

2563

Males

2357

M18-39

2357

Passing Analysis

Category:
Athletes Passed
9292*
Passed By
23
Net Change
+9269
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15884
5K → 10K36981+3697#15884#12187
10K → 15K17776+1771#12187#10416
15K → 20K1007*0+1007#10416#9409
20K → Half1440+144#9409#9265
Half → 25K3951+394#9265#8871
25K → 30K6442+642#8871#8229
30K → 20M3720+372#8229#7857
20M → 21M2560+256#7857#7601
21M → 35K1136+107#7601#7494
35K → 23M2312+229#7494#7265
23M → 24M1771+176#7265#7089
24M → 40K1752+173#7089#6916
40K → 25.2M831+82#6916#6834
25.2M → Finish2201+219#6834#6615
TOTALS9292*23+9269

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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