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BOSTON MARATHON 2023

Dallin Henderson

Bib: 6521•M

TN

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 15%
Gender (Male)
#0 / 15176
Top 25%
Division (M18-39)
#0 / 5285
Top 49%
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
6:42/mi
20:50
↑ 97↓ 3451.5%
10K· 6.21 mi
6:43/mi
41:42
↑ 79↓ 1380.4%
15K· 9.32 mi
6:48/mi
1:02:50
↑ 67↓ 78
20K· 12.43 mi
6:45/mi
1:23:49
↑ 106↓ 860.1%
Half· 13.11 mi
6:43/mi
1:28:24
↑ 19↓ 370.5%
25K· 15.53 mi
6:43/mi
1:44:40
↑ 66↓ 880.2%
30K· 18.64 mi
6:51/mi
2:05:58
↑ 181↓ 1480.2%
20M
7:02/mi
2:15:31
↑ 64↓ 500.2%
21M
7:25/mi
2:22:56
↑ 106↓ 241.6%
35K· 21.75 mi
6:53/mi
2:28:05
↑ 17↓ 861.7%
23M
7:04/mi
2:36:56
↑ 23↓ 630.6%
24M
6:56/mi
2:43:52
↓ 821.3%
40K· 24.85 mi
7:00/mi
2:49:51
↓ 200.3%
25.2M
7:29/mi
2:52:26
↑ 13↓ 160.2%
Finish· 26.22 mi
6:51/mi
2:59:25
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:24
Pace6:45 /mi
2nd Half
Distance13.11 mi
Time1:31:01
Pace6:57 /mi
📊Positive Split: 3.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:0320:506:4220:50
6:42
-
10K
6.21 mi10:44:5541:426:4320:52
6:43
+0:01
15K
9.32 mi11:06:031:02:506:4421:08
6:48
+0:05
20K
12.43 mi11:27:021:23:496:4520:59
6:45
-0:03
Half
13.11 mi11:31:371:28:246:454:35
6:43
-0:02
25K
15.53 mi11:47:531:44:406:4416:16
6:43
0:00
30K
18.64 mi12:09:112:05:586:4521:18
6:51
+0:08
20M
20.00 mi12:18:442:15:316:479:33
7:02
+0:11
21M
21.00 mi12:26:092:22:566:487:25
7:25
+0:23
35K
21.75 mi12:31:182:28:056:495:09
6:53
-0:32
23M
23.00 mi12:40:092:36:566:498:51
7:04
+0:11
24M
24.00 mi12:47:052:43:526:506:56
6:56
-0:08
40K
24.85 mi12:53:042:49:516:505:59
7:00
+0:04
25.2M
25.20 mi12:55:392:52:266:512:35
7:29
+0:29
Finish
26.22 mi13:02:382:59:256:516:59
6:51
-0:38

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

6:42 /mi

Average Pace

6:51 /mi

Slowest Pace

7:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:25

94% of race

Time at Steady Pace

10:00

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:51 /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 mi10:24:0320:506:4220:50
6:42
#3723
10K
6.21 mi10:44:5541:426:4320:52
6:43
#4090
15K
9.32 mi11:06:031:02:506:4421:08
6:48
#4421
20K
12.43 mi11:27:021:23:496:4520:59
6:45
#4301
Half
13.11 mi11:31:371:28:246:454:35
6:43
#4296
25K
15.53 mi11:47:531:44:406:4416:16
6:43
#4117
30K
18.64 mi12:09:112:05:586:4521:18
6:51
#3923
20M
20.00 mi12:18:442:15:316:479:33
7:02
#3936
21M
21.00 mi12:26:092:22:566:487:25
7:25
#3929
35K
21.75 mi12:31:182:28:056:495:09
6:53
#3951
23M
23.00 mi12:40:092:36:566:498:51
7:04
#3963
24M
24.00 mi12:47:052:43:526:506:56
6:56
#3984
40K
24.85 mi12:53:042:49:516:505:59
7:00
#3977
25.2M
25.20 mi12:55:392:52:266:512:35
7:29
#3970
Finish
26.22 mi13:02:382:59:256:516:59
6:51
#4002
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3723349934995126(Top 19%)4743(Top 31%)4743(Top 90%)
10K6.21 mi3.10 mi4090-3673845-3463845-3464496(Top 17%)4201(Top 28%)4201(Top 79%)
15K9.32 mi3.11 mi4421-3314137-2924137-2925126(Top 19%)4743(Top 31%)4743(Top 90%)
20K12.43 mi3.11 mi4301+1204029+1084029+1084013(Top 15%)3767(Top 25%)3767(Top 71%)
Half13.11 mi0.68 mi4296+54021+84021+84488(Top 17%)4180(Top 28%)4180(Top 79%)
25K15.53 mi2.42 mi4117+1793863+1583863+1583433(Top 13%)3254(Top 21%)3254(Top 62%)
30K18.64 mi3.11 mi3923+1943697+1663697+1663354(Top 13%)3158(Top 21%)3158(Top 60%)
20M20.00 mi1.36 mi3936-133704-73704-74182(Top 16%)3861(Top 25%)3861(Top 73%)
21M21.00 mi1.00 mi3929+73698+63698+64187(Top 16%)3839(Top 25%)3839(Top 73%)
35K21.75 mi0.75 mi3951-223714-163714-164655(Top 17%)4220(Top 28%)4220(Top 80%)
23M23.00 mi1.25 mi3963-123718-43718-44130(Top 16%)3786(Top 25%)3786(Top 72%)
24M24.00 mi1.00 mi3984-213731-133731-134324(Top 16%)3916(Top 26%)3916(Top 74%)
40K24.85 mi0.85 mi3977+73724+73724+73837(Top 14%)3454(Top 23%)3454(Top 65%)
25.2M25.20 mi0.35 mi3970+73716+83716+83836(Top 14%)3426(Top 23%)3426(Top 65%)
Finish26.22 mi1.02 mi4002-323746-303746-304354(Top 16%)3812(Top 25%)3812(Top 72%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21story building
+97ft-345ft

Overall

5126

Males

4743

M18-39

4743

5K→10K

3.1 - 6.2 mi

Top 17%
×5story building
+79ft-138ft

Overall

4496

Males

4201

M18-39

4201

10K→15K

6.2 - 9.3 mi

Top 19%
×3story building
+67ft-78ft

Overall

5126

Males

4743

M18-39

4743

15K→20K

9.3 - 12.4 mi

Top 15%
×5story building
+106ft-86ft

Overall

4013

Males

3767

M18-39

3767

20K→Half

12.4 - 13.1 mi

Top 17%
×2story building
+19ft-37ft

Overall

4488

Males

4180

M18-39

4180

Half→25K

13.1 - 15.5 mi

Top 13%
×4story building
+66ft-88ft

Overall

3433

Males

3254

M18-39

3254

25K→30K

15.5 - 18.6 mi

Top 13%
×9story building
+181ft-148ft

Overall

3354

Males

3158

M18-39

3158

30K→20M

18.6 - 20.0 mi

Top 16%
×5story building
+64ft-50ft

Overall

4182

Males

3861

M18-39

3861

20M→21M

20.0 - 21.0 mi

Top 16%
×8story building
+106ft-24ft

Overall

4187

Males

3839

M18-39

3839

21M→35K

21.0 - 21.8 mi

Top 17%
×7story building
+17ft-86ft

Overall

4655

Males

4220

M18-39

4220

35K→23M

21.8 - 23.0 mi

Top 16%
×5story building
+23ft-63ft

Overall

4130

Males

3786

M18-39

3786

23M→24M

23.0 - 24.0 mi

Top 16%
×6story building
+12ft-82ft

Overall

4324

Males

3916

M18-39

3916

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3837

Males

3454

M18-39

3454

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3836

Males

3426

M18-39

3426

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2story building
+22ft-21ft

Overall

4354

Males

3812

M18-39

3812

Passing Analysis

Category:
Athletes Passed
1097
Passed By
1376
Net Change
-279
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3723
5K → 10K80447-367#3723#4090
10K → 15K46377-331#4090#4421
15K → 20K16242+120#4421#4301
20K → Half2419+5#4301#4296
Half → 25K19011+179#4296#4117
25K → 30K21824+194#4117#3923
30K → 20M6073-13#3923#3936
20M → 21M7669+7#3936#3929
21M → 35K2749-22#3929#3951
35K → 23M5971-12#3951#3963
23M → 24M4566-21#3963#3984
24M → 40K4740+7#3984#3977
40K → 25.2M2619+7#3977#3970
25.2M → Finish3769-32#3970#4002
TOTALS10971376-279
📊

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