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BOSTON MARATHON 2023

Nathan Dummitt

GA

Bib: 1662 M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 1%
Gender (Male)
#0 / 15176
Top 2%
Division (M18-39)
#0 / 5285
Top 5%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
5:44/mi
17:50
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
5:45/mi
35:42
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
5:52/mi
53:55
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
5:49/mi
1:11:59
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
5:39/mi
1:15:50
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
5:51/mi
1:30:00
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
6:00/mi
1:48:38
↑ 181↓ 1480.2%
138 ft elev
20M
6:02/mi
1:56:50
↑ 64↓ 500.2%
148 ft elev
21M
6:15/mi
2:03:05
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
5:56/mi
2:07:31
↑ 17↓ 861.7%
156 ft elev
23M
6:07/mi
2:15:10
↑ 23↓ 630.6%
116 ft elev
24M
5:58/mi
2:21:08
↓ 821.3%
34 ft elev
40K· 24.85 mi
6:06/mi
2:26:21
↓ 200.3%
20 ft elev
25.2M
6:31/mi
2:28:36
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
6:00/mi
2:34:43
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:15:50
Pace5:47 /mi
2nd Half
Distance13.11 mi
Time1:18:53
Pace6:01 /mi
📊Positive Split: 4.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:1017:505:4417:50
5:44
-
10K
6.21 mi10:36:0235:425:4517:52
5:45
+0:01
15K
9.32 mi10:54:1553:555:4718:13
5:52
+0:07
20K
12.43 mi11:12:191:11:595:4818:04
5:49
-0:03
Half
13.11 mi11:16:101:15:505:473:51
5:39
-0:10
25K
15.53 mi11:30:201:30:005:4814:10
5:51
+0:12
30K
18.64 mi11:48:581:48:385:5018:38
6:00
+0:09
20M
20.00 mi11:57:101:56:505:508:12
6:02
+0:02
21M
21.00 mi12:03:252:03:055:526:15
6:15
+0:13
35K
21.75 mi12:07:512:07:315:524:26
5:56
-0:19
23M
23.00 mi12:15:302:15:105:537:39
6:07
+0:11
24M
24.00 mi12:21:282:21:085:535:58
5:58
-0:09
40K
24.85 mi12:26:412:26:215:535:13
6:06
+0:08
25.2M
25.20 mi12:28:562:28:365:542:15
6:31
+0:25
Finish
26.22 mi12:35:032:34:435:546:07
6:00
-0:31

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

5:39 /mi

Average Pace

5:54 /mi

Slowest Pace

6:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:26:13

95% of race

Time at Steady Pace

8:30

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:54 /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 mi10:18:1017:505:4417:50
5:44
#312
10K
6.21 mi10:36:0235:425:4517:52
5:45
#345
15K
9.32 mi10:54:1553:555:4718:13
5:52
#372
20K
12.43 mi11:12:191:11:595:4818:04
5:49
#353
Half
13.11 mi11:16:101:15:505:473:51
5:39
#345
25K
15.53 mi11:30:201:30:005:4814:10
5:51
#337
30K
18.64 mi11:48:581:48:385:5018:38
6:00
#332
20M
20.00 mi11:57:101:56:505:508:12
6:02
#329
21M
21.00 mi12:03:252:03:055:526:15
6:15
#322
35K
21.75 mi12:07:512:07:315:524:26
5:56
#320
23M
23.00 mi12:15:302:15:105:537:39
6:07
#322
24M
24.00 mi12:21:282:21:085:535:58
5:58
#324
40K
24.85 mi12:26:412:26:215:535:13
6:06
#321
25.2M
25.20 mi12:28:562:28:365:542:15
6:31
#317
Finish
26.22 mi12:35:032:34:435:546:07
6:00
#315
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi312296296443409409
10K6.21 mi3.10 mi345-33311-15311-15378343343
15K9.32 mi3.11 mi372-27338-27338-27443409409
20K12.43 mi3.11 mi353+19320+18320+18325293293
Half13.11 mi0.68 mi345+8313+7313+7228206206
25K15.53 mi2.42 mi337+8305+8305+8331303303
30K18.64 mi3.11 mi332+5300+5300+5378347347
20M20.00 mi1.36 mi329+3297+3297+3380350350
21M21.00 mi1.00 mi322+7291+6291+6293268268
35K21.75 mi0.75 mi320+2289+2289+2538500500
23M23.00 mi1.25 mi322-2291-2291-2463432432
24M24.00 mi1.00 mi324-2293-2293-2477450450
40K24.85 mi0.85 mi321+3291+2291+2476447447
25.2M25.20 mi0.35 mi317+4287+4287+4520488488
Finish26.22 mi1.02 mi315+2284+3284+3719687687

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21story building
+97ft-345ft

Overall

443

Males

409

M18-39

409

5K→10K

3.1 - 6.2 mi

Top 1%
×5story building
+79ft-138ft

Overall

378

Males

343

M18-39

343

10K→15K

6.2 - 9.3 mi

Top 2%
×3story building
+67ft-78ft

Overall

443

Males

409

M18-39

409

15K→20K

9.3 - 12.4 mi

Top 1%
×5story building
+106ft-86ft

Overall

325

Males

293

M18-39

293

20K→Half

12.4 - 13.1 mi

Top 0.9%
×2story building
+19ft-37ft

Overall

228

Males

206

M18-39

206

Half→25K

13.1 - 15.5 mi

Top 1%
×4story building
+66ft-88ft

Overall

331

Males

303

M18-39

303

25K→30K

15.5 - 18.6 mi

Top 1%
×9story building
+181ft-148ft

Overall

378

Males

347

M18-39

347

30K→20M

18.6 - 20.0 mi

Top 1%
×5story building
+64ft-50ft

Overall

380

Males

350

M18-39

350

20M→21M

20.0 - 21.0 mi

Top 1%
×8story building
+106ft-24ft

Overall

293

Males

268

M18-39

268

21M→35K

21.0 - 21.8 mi

Top 2%
×7story building
+17ft-86ft

Overall

538

Males

500

M18-39

500

35K→23M

21.8 - 23.0 mi

Top 2%
×5story building
+23ft-63ft

Overall

463

Males

432

M18-39

432

23M→24M

23.0 - 24.0 mi

Top 2%
×6story building
+12ft-82ft

Overall

477

Males

450

M18-39

450

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

476

Males

447

M18-39

447

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

520

Males

488

M18-39

488

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2story building
+22ft-21ft

Overall

719

Males

687

M18-39

687

Passing Analysis

Category:
Athletes Passed
133
Passed By
136
Net Change
-3
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#312
5K → 10K942-33#312#345
10K → 15K835-27#345#372
15K → 20K212+19#372#353
20K → Half80+8#353#345
Half → 25K157+8#345#337
25K → 30K149+5#337#332
30K → 20M96+3#332#329
20M → 21M81+7#329#322
21M → 35K31+2#322#320
35K → 23M911-2#320#322
23M → 24M57-2#322#324
24M → 40K118+3#324#321
40K → 25.2M51+4#321#317
25.2M → Finish86+2#317#315
TOTALS133136-3

Passing Charts

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