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BOSTON MARATHON 2023

Daniel Henderson

Bib: 30001•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:19
Rank: #17347
Start → 5K
26:19 | 8:28/mi
10K· 6.21 mi
51:41
Rank: #16640 (+707)
5K → 10K
25:22 | 8:10/mi
15K· 9.32 mi
1:16:37
Rank: #15968 (+672)
10K → 15K
24:56 | 8:02/mi
20K· 12.43 mi
1:41:42
Rank: #15459 (+509)
15K → 20K
25:05 | 8:04/mi
Half· 13.11 mi
1:47:05
Rank: #15368 (+91)
20K → Half
5:23 | 7:53/mi
25K· 15.53 mi
2:07:37
Rank: #15459 (-91)
Half → 25K
20:32 | 8:28/mi
30K· 18.64 mi
2:34:40
Rank: #15445 (+14)
25K → 30K
27:03 | 8:42/mi
20M
2:46:42
Rank: #15467 (-22)
30K → 20M
12:02 | 8:51/mi
21M
2:56:39
Rank: #15609 (-142)
20M → 21M
9:57 | 9:57/mi
35K· 21.75 mi
3:02:44
Rank: #15502 (+107)
21M → 35K
6:05 | 8:08/mi
23M
3:13:42
Rank: #15439 (+63)
35K → 23M
10:58 | 8:46/mi
24M
3:22:38
Rank: #15506 (-67)
23M → 24M
8:56 | 8:56/mi
40K· 24.85 mi
3:30:20
Rank: #15528 (-22)
24M → 40K
7:42 | 9:00/mi
25.2M
3:33:53
Rank: #15604 (-76)
40K → 25.2M
3:33 | 10:18/mi
Finish· 26.22 mi
3:42:17
Rank: #15508 (+96)
25.2M → Finish
8:24 | 8:15/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:05
Pace8:10 /mi
2nd Half
Distance13.11 mi
Time1:55:12
Pace8:47 /mi
📊Positive Split: 7.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:3126:198:2826:19
8:28
-
10K
6.21 mi12:15:5351:418:1925:22
8:10
-0:18
15K
9.32 mi12:40:491:16:378:1324:56
8:02
-0:08
20K
12.43 mi13:05:541:41:428:1125:05
8:04
+0:02
Half
13.11 mi13:11:171:47:058:105:23
7:53
-0:11
25K
15.53 mi13:31:492:07:378:1320:32
8:28
+0:35
30K
18.64 mi13:58:522:34:408:1827:03
8:42
+0:14
20M
20.00 mi14:10:542:46:428:2012:02
8:51
+0:09
21M
21.00 mi14:20:512:56:398:259:57
9:57
+1:06
35K
21.75 mi14:26:563:02:448:246:05
8:08
-1:49
23M
23.00 mi14:37:543:13:428:2510:58
8:46
+0:38
24M
24.00 mi14:46:503:22:388:278:56
8:56
+0:10
40K
24.85 mi14:54:323:30:208:287:42
9:00
+0:04
25.2M
25.20 mi14:58:053:33:538:293:33
10:18
+1:18
Finish
26.22 mi15:06:293:42:178:298:24
8:15
-2:03

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

7:53 /mi

Average Pace

8:29 /mi

Slowest Pace

10:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

55:24

25% of race

Time at Steady Pace

2:04:43

56% of race

Time at Slower Pace

42:10

19% of race

Average Pace: 8:29 /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 mi11:50:3126:198:2826:19
8:28
#17347
10K
6.21 mi12:15:5351:418:1925:22
8:10
#16640
15K
9.32 mi12:40:491:16:378:1324:56
8:02
#15968
20K
12.43 mi13:05:541:41:428:1125:05
8:04
#15459
Half
13.11 mi13:11:171:47:058:105:23
7:53
#15368
25K
15.53 mi13:31:492:07:378:1320:32
8:28
#15459
30K
18.64 mi13:58:522:34:408:1827:03
8:42
#15445
20M
20.00 mi14:10:542:46:428:2012:02
8:51
#15467
21M
21.00 mi14:20:512:56:398:259:57
9:57
#15609
35K
21.75 mi14:26:563:02:448:246:05
8:08
#15502
23M
23.00 mi14:37:543:13:428:2510:58
8:46
#15439
24M
24.00 mi14:46:503:22:388:278:56
8:56
#15506
40K
24.85 mi14:54:323:30:208:287:42
9:00
#15528
25.2M
25.20 mi14:58:053:33:538:293:33
10:18
#15604
Finish
26.22 mi15:06:293:42:178:298:24
8:15
#15508
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi17347111661116614581(Top 55%)10133(Top 67%)10133(Top 452%)
10K6.21 mi3.10 mi16640+70710952+21410952+21416003(Top 60%)10707(Top 71%)10707(Top 478%)
15K9.32 mi3.11 mi15968+67210687+26510687+26514581(Top 55%)10133(Top 67%)10133(Top 452%)
20K12.43 mi3.11 mi15459+50910469+21810469+21814043(Top 53%)9898(Top 65%)9898(Top 442%)
Half13.11 mi0.68 mi15368+9110431+3810431+3813491(Top 51%)9696(Top 64%)9696(Top 433%)
25K15.53 mi2.42 mi15459-9110436-510436-515991(Top 60%)10531(Top 69%)10531(Top 470%)
30K18.64 mi3.11 mi15445+1410386+5010386+5015539(Top 58%)10282(Top 68%)10282(Top 459%)
20M20.00 mi1.36 mi15467-2210377+910377+915728(Top 59%)10299(Top 68%)10299(Top 460%)
21M21.00 mi1.00 mi15609-14210405-2810405-2817829(Top 67%)11147(Top 73%)11147(Top 497%)
35K21.75 mi0.75 mi15502+10710349+5610349+5612988(Top 49%)8986(Top 59%)8986(Top 401%)
23M23.00 mi1.25 mi15439+6310295+5410295+5414743(Top 55%)9694(Top 64%)9694(Top 433%)
24M24.00 mi1.00 mi15506-6710304-910304-916904(Top 63%)10581(Top 70%)10581(Top 472%)
40K24.85 mi0.85 mi15528-2210303+110303+116136(Top 61%)10180(Top 67%)10180(Top 454%)
25.2M25.20 mi0.35 mi15604-7610327-2410327-2418403(Top 69%)11195(Top 74%)11195(Top 500%)
Finish26.22 mi1.02 mi15508+9610275+5210275+5213707(Top 51%)9112(Top 60%)9112(Top 407%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21stories
+97ft-345ft

Overall

14581

Males

10133

M40-44

10133

5K→10K

3.1 - 6.2 mi

Top 60%
×5stories
+79ft-138ft

Overall

16003

Males

10707

M40-44

10707

10K→15K

6.2 - 9.3 mi

Top 55%
×3stories
+67ft-78ft

Overall

14581

Males

10133

M40-44

10133

15K→20K

9.3 - 12.4 mi

Top 53%
×5stories
+106ft-86ft

Overall

14043

Males

9898

M40-44

9898

20K→Half

12.4 - 13.1 mi

Top 51%
×2stories
+19ft-37ft

Overall

13491

Males

9696

M40-44

9696

Half→25K

13.1 - 15.5 mi

Top 60%
×4stories
+66ft-88ft

Overall

15991

Males

10531

M40-44

10531

25K→30K

15.5 - 18.6 mi

Top 58%
×9stories
+181ft-148ft

Overall

15539

Males

10282

M40-44

10282

30K→20M

18.6 - 20.0 mi

Top 59%
×5stories
+64ft-50ft

Overall

15728

Males

10299

M40-44

10299

20M→21M

20.0 - 21.0 mi

Top 67%
×8stories
+106ft-24ft

Overall

17829

Males

11147

M40-44

11147

21M→35K

21.0 - 21.8 mi

Top 49%
×7stories
+17ft-86ft

Overall

12988

Males

8986

M40-44

8986

35K→23M

21.8 - 23.0 mi

Top 55%
×5stories
+23ft-63ft

Overall

14743

Males

9694

M40-44

9694

23M→24M

23.0 - 24.0 mi

Top 63%
×6stories
+12ft-82ft

Overall

16904

Males

10581

M40-44

10581

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

16136

Males

10180

M40-44

10180

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

18403

Males

11195

M40-44

11195

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2stories
+22ft-21ft

Overall

13707

Males

9112

M40-44

9112

Passing Analysis

Category:
Athletes Passed
3006
Passed By
1167
Net Change
+1839
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17347
5K → 10K812105+707#17347#16640
10K → 15K70331+672#16640#15968
15K → 20K52213+509#15968#15459
20K → Half976+91#15459#15368
Half → 25K104195-91#15368#15459
25K → 30K195181+14#15459#15445
30K → 20M7294-22#15445#15467
20M → 21M50192-142#15467#15609
21M → 35K1103+107#15609#15502
35K → 23M11653+63#15502#15439
23M → 24M47114-67#15439#15506
24M → 40K4971-22#15506#15528
40K → 25.2M1389-76#15528#15604
25.2M → Finish11620+96#15604#15508
TOTALS30061167+1839
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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