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BOSTON MARATHON 2023

Derek Duncan

Bib: 6681•M

TX

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 31%
Gender (Male)
#0 / 15176
Top 45%
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
6:48/mi
21:08
↑ 97↓ 3451.5%
10K· 6.21 mi
7:00/mi
42:52
↑ 79↓ 1380.4%
15K· 9.32 mi
7:07/mi
1:04:59
↑ 67↓ 78
20K· 12.43 mi
7:25/mi
1:28:00
↑ 106↓ 860.1%
Half· 13.11 mi
7:09/mi
1:32:53
↑ 19↓ 370.5%
25K· 15.53 mi
7:32/mi
1:51:08
↑ 66↓ 880.2%
30K· 18.64 mi
7:57/mi
2:15:51
↑ 181↓ 1480.2%
20M
8:15/mi
2:27:04
↑ 64↓ 500.2%
21M
8:38/mi
2:35:42
↑ 106↓ 241.6%
35K· 21.75 mi
7:41/mi
2:41:27
↑ 17↓ 861.7%
23M
8:18/mi
2:51:51
↑ 23↓ 630.6%
24M
7:47/mi
2:59:38
↓ 821.3%
40K· 24.85 mi
7:41/mi
3:06:12
↓ 200.3%
25.2M
7:56/mi
3:08:56
↑ 13↓ 160.2%
Finish· 26.22 mi
7:17/mi
3:16:21
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:53
Pace7:05 /mi
2nd Half
Distance13.11 mi
Time1:43:28
Pace7:54 /mi
📊Positive Split: 11.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:0621:086:4821:08
6:48
-
10K
6.21 mi10:46:5042:526:5421:44
7:00
+0:12
15K
9.32 mi11:08:571:04:596:5822:07
7:07
+0:07
20K
12.43 mi11:31:581:28:007:0523:01
7:25
+0:18
Half
13.11 mi11:36:511:32:537:054:53
7:09
-0:16
25K
15.53 mi11:55:061:51:087:0918:15
7:32
+0:23
30K
18.64 mi12:19:492:15:517:1724:43
7:57
+0:25
20M
20.00 mi12:31:022:27:047:2111:13
8:15
+0:18
21M
21.00 mi12:39:402:35:427:258:38
8:38
+0:23
35K
21.75 mi12:45:252:41:277:255:45
7:41
-0:57
23M
23.00 mi12:55:492:51:517:2810:24
8:18
+0:37
24M
24.00 mi13:03:362:59:387:297:47
7:47
-0:31
40K
24.85 mi13:10:103:06:127:296:34
7:41
-0:06
25.2M
25.20 mi13:12:543:08:567:302:44
7:56
+0:15
Finish
26.22 mi13:20:193:16:217:307:25
7:17
-0:39

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

6:48 /mi

Average Pace

7:30 /mi

Slowest Pace

8:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:40:18

51% of race

Time at Steady Pace

41:05

21% of race

Time at Slower Pace

54:58

28% of race

Average Pace: 7:29 /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 mi10:25:0621:086:4821:08
6:48
#4714
10K
6.21 mi10:46:5042:526:5421:44
7:00
#5811
15K
9.32 mi11:08:571:04:596:5822:07
7:07
#6333
20K
12.43 mi11:31:581:28:007:0523:01
7:25
#6813
Half
13.11 mi11:36:511:32:537:054:53
7:09
#6848
25K
15.53 mi11:55:061:51:087:0918:15
7:32
#7083
30K
18.64 mi12:19:492:15:517:1724:43
7:57
#7553
20M
20.00 mi12:31:022:27:047:2111:13
8:15
#7821
21M
21.00 mi12:39:402:35:427:258:38
8:38
#7985
35K
21.75 mi12:45:252:41:277:255:45
7:41
#8040
23M
23.00 mi12:55:492:51:517:2810:24
8:18
#8237
24M
24.00 mi13:03:362:59:387:297:47
7:47
#8292
40K
24.85 mi13:10:103:06:127:296:34
7:41
#8252
25.2M
25.20 mi13:12:543:08:567:302:44
7:56
#8196
Finish
26.22 mi13:20:193:16:217:307:25
7:17
#8122
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4714438843887261(Top 27%)6432(Top 42%)6432(Top 122%)
10K6.21 mi3.10 mi5811-10975333-9455333-9456792(Top 26%)6085(Top 40%)6085(Top 115%)
15K9.32 mi3.11 mi6333-5225734-4015734-4017261(Top 27%)6432(Top 42%)6432(Top 122%)
20K12.43 mi3.11 mi6813-4806112-3786112-3788570(Top 32%)7235(Top 48%)7235(Top 137%)
Half13.11 mi0.68 mi6848-356141-296141-297559(Top 28%)6618(Top 44%)6618(Top 125%)
25K15.53 mi2.42 mi7083-2356295-1546295-1548953(Top 34%)7400(Top 49%)7400(Top 140%)
30K18.64 mi3.11 mi7553-4706592-2976592-29710527(Top 40%)8108(Top 53%)8108(Top 153%)
20M20.00 mi1.36 mi7821-2686747-1556747-15512012(Top 45%)8702(Top 57%)8702(Top 165%)
21M21.00 mi1.00 mi7985-1646834-876834-8711221(Top 42%)8211(Top 54%)8211(Top 155%)
35K21.75 mi0.75 mi8040-556851-176851-179789(Top 37%)7502(Top 49%)7502(Top 142%)
23M23.00 mi1.25 mi8237-1976954-1036954-10311896(Top 45%)8414(Top 55%)8414(Top 159%)
24M24.00 mi1.00 mi8292-556966-126966-129621(Top 36%)7200(Top 47%)7200(Top 136%)
40K24.85 mi0.85 mi8252+406923+436923+437816(Top 29%)6130(Top 40%)6130(Top 116%)
25.2M25.20 mi0.35 mi8196+566879+446879+446080(Top 23%)5011(Top 33%)5011(Top 95%)
Finish26.22 mi1.02 mi8122+746816+636816+636951(Top 26%)5534(Top 36%)5534(Top 105%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21story building
+97ft-345ft

Overall

7261

Males

6432

M18-39

6432

5K→10K

3.1 - 6.2 mi

Top 26%
×5story building
+79ft-138ft

Overall

6792

Males

6085

M18-39

6085

10K→15K

6.2 - 9.3 mi

Top 27%
×3story building
+67ft-78ft

Overall

7261

Males

6432

M18-39

6432

15K→20K

9.3 - 12.4 mi

Top 32%
×5story building
+106ft-86ft

Overall

8570

Males

7235

M18-39

7235

20K→Half

12.4 - 13.1 mi

Top 28%
×2story building
+19ft-37ft

Overall

7559

Males

6618

M18-39

6618

Half→25K

13.1 - 15.5 mi

Top 34%
×4story building
+66ft-88ft

Overall

8953

Males

7400

M18-39

7400

25K→30K

15.5 - 18.6 mi

Top 40%
×9story building
+181ft-148ft

Overall

10527

Males

8108

M18-39

8108

30K→20M

18.6 - 20.0 mi

Top 45%
×5story building
+64ft-50ft

Overall

12012

Males

8702

M18-39

8702

20M→21M

20.0 - 21.0 mi

Top 42%
×8story building
+106ft-24ft

Overall

11221

Males

8211

M18-39

8211

21M→35K

21.0 - 21.8 mi

Top 37%
×7story building
+17ft-86ft

Overall

9789

Males

7502

M18-39

7502

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

11896

Males

8414

M18-39

8414

23M→24M

23.0 - 24.0 mi

Top 36%
×6story building
+12ft-82ft

Overall

9621

Males

7200

M18-39

7200

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

7816

Males

6130

M18-39

6130

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6080

Males

5011

M18-39

5011

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2story building
+22ft-21ft

Overall

6951

Males

5534

M18-39

5534

Passing Analysis

Category:
Athletes Passed
523
Passed By
3931
Net Change
-3408
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4714
5K → 10K191116-1097#4714#5811
10K → 15K15537-522#5811#6333
15K → 20K23503-480#6333#6813
20K → Half641-35#6813#6848
Half → 25K33268-235#6848#7083
25K → 30K28498-470#7083#7553
30K → 20M17285-268#7553#7821
20M → 21M27191-164#7821#7985
21M → 35K2984-55#7985#8040
35K → 23M40237-197#8040#8237
23M → 24M48103-55#8237#8292
24M → 40K7434+40#8292#8252
40K → 25.2M593+56#8252#8196
25.2M → Finish10531+74#8196#8122
TOTALS5233931-3408
📊

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