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BOSTON MARATHON 2023

Henk Van Lien

Bib: 9575•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 27%
Gender (Male)
#0 / 15176
Top 41%
Masters (Masters Men)
#0 / 9891
Top 27%
Division (M50-54)
#0 / 2052
Top 22%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:23
Rank: #7514
Start → 5K
22:23 | 7:12/mi
10K· 6.21 mi
44:27
Rank: #7441 (+73)
5K → 10K
22:04 | 7:06/mi
15K· 9.32 mi
1:06:27
Rank: #7287 (+154)
10K → 15K
22:00 | 7:05/mi
20K· 12.43 mi
1:29:03
Rank: #7311 (-24)
15K → 20K
22:36 | 7:16/mi
Half· 13.11 mi
1:33:58
Rank: #7330 (-19)
20K → Half
4:55 | 7:12/mi
25K· 15.53 mi
1:51:55
Rank: #7391 (-61)
Half → 25K
17:57 | 7:24/mi
30K· 18.64 mi
2:15:33
Rank: #7431 (-40)
25K → 30K
23:38 | 7:36/mi
20M
2:25:58
Rank: #7420 (+11)
30K → 20M
10:25 | 7:40/mi
21M
2:34:00
Rank: #7415 (+5)
20M → 21M
8:02 | 8:02/mi
35K· 21.75 mi
2:39:25
Rank: #7372 (+43)
21M → 35K
5:25 | 7:14/mi
23M
2:48:48
Rank: #7275 (+97)
35K → 23M
9:23 | 7:30/mi
24M
2:56:11
Rank: #7227 (+48)
23M → 24M
7:23 | 7:23/mi
40K· 24.85 mi
3:02:39
Rank: #7189 (+38)
24M → 40K
6:28 | 7:34/mi
25.2M
3:05:26
Rank: #7161 (+28)
40K → 25.2M
2:47 | 8:04/mi
Finish· 26.22 mi
3:12:54
Rank: #7120 (+41)
25.2M → Finish
7:28 | 7:20/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:58
Pace7:10 /mi
2nd Half
Distance13.11 mi
Time1:38:56
Pace7:33 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:3522:237:1222:23
7:12
-
10K
6.21 mi11:10:3944:277:0922:04
7:06
-0:06
15K
9.32 mi11:32:391:06:277:0822:00
7:05
-0:01
20K
12.43 mi11:55:151:29:037:1022:36
7:16
+0:11
Half
13.11 mi12:00:101:33:587:104:55
7:12
-0:04
25K
15.53 mi12:18:071:51:557:1217:57
7:24
+0:12
30K
18.64 mi12:41:452:15:337:1623:38
7:36
+0:12
20M
20.00 mi12:52:102:25:587:1810:25
7:40
+0:04
21M
21.00 mi13:00:122:34:007:208:02
8:02
+0:22
35K
21.75 mi13:05:372:39:257:205:25
7:14
-0:48
23M
23.00 mi13:15:002:48:487:209:23
7:30
+0:16
24M
24.00 mi13:22:232:56:117:207:23
7:23
-0:07
40K
24.85 mi13:28:513:02:397:216:28
7:34
+0:11
25.2M
25.20 mi13:31:383:05:267:222:47
8:04
+0:30
Finish
26.22 mi13:39:063:12:547:227:28
7:20
-0:44

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

7:05 /mi

Average Pace

7:22 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:02:05

94% of race

Time at Steady Pace

10:49

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:21 /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 mi10:48:3522:237:1222:23
7:12
#7514
10K
6.21 mi11:10:3944:277:0922:04
7:06
#7441
15K
9.32 mi11:32:391:06:277:0822:00
7:05
#7287
20K
12.43 mi11:55:151:29:037:1022:36
7:16
#7311
Half
13.11 mi12:00:101:33:587:104:55
7:12
#7330
25K
15.53 mi12:18:071:51:557:1217:57
7:24
#7391
30K
18.64 mi12:41:452:15:337:1623:38
7:36
#7431
20M
20.00 mi12:52:102:25:587:1810:25
7:40
#7420
21M
21.00 mi13:00:122:34:007:208:02
8:02
#7415
35K
21.75 mi13:05:372:39:257:205:25
7:14
#7372
23M
23.00 mi13:15:002:48:487:209:23
7:30
#7275
24M
24.00 mi13:22:232:56:117:207:23
7:23
#7227
40K
24.85 mi13:28:513:02:397:216:28
7:34
#7189
25.2M
25.20 mi13:31:383:05:267:222:47
8:04
#7161
Finish
26.22 mi13:39:063:12:547:227:28
7:20
#7120
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi7514665866587038(Top 26%)6271(Top 41%)6271(Top 306%)
10K6.21 mi3.10 mi7441+736592+666592+667458(Top 28%)6568(Top 43%)6568(Top 320%)
15K9.32 mi3.11 mi7287+1546464+1286464+1287038(Top 26%)6271(Top 41%)6271(Top 306%)
20K12.43 mi3.11 mi7311-246472-86472-87586(Top 28%)6617(Top 44%)6617(Top 322%)
Half13.11 mi0.68 mi7330-196487-156487-157851(Top 29%)6799(Top 45%)6799(Top 331%)
25K15.53 mi2.42 mi7391-616523-366523-368035(Top 30%)6820(Top 45%)6820(Top 332%)
30K18.64 mi3.11 mi7431-406516+76516+77967(Top 30%)6662(Top 44%)6662(Top 325%)
20M20.00 mi1.36 mi7420+116488+286488+287890(Top 30%)6516(Top 43%)6516(Top 318%)
21M21.00 mi1.00 mi7415+56456+326456+327530(Top 28%)6198(Top 41%)6198(Top 302%)
35K21.75 mi0.75 mi7372+436423+336423+336761(Top 25%)5747(Top 38%)5747(Top 280%)
23M23.00 mi1.25 mi7275+976338+856338+856381(Top 24%)5431(Top 36%)5431(Top 265%)
24M24.00 mi1.00 mi7227+486287+516287+516919(Top 26%)5672(Top 37%)5672(Top 276%)
40K24.85 mi0.85 mi7189+386250+376250+377080(Top 27%)5673(Top 37%)5673(Top 276%)
25.2M25.20 mi0.35 mi7161+286220+306220+306868(Top 26%)5500(Top 36%)5500(Top 268%)
Finish26.22 mi1.02 mi7120+416162+586162+587281(Top 27%)5736(Top 38%)5736(Top 280%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21stories
+97ft-345ft

Overall

7038

Males

6271

M50-54

6271

5K→10K

3.1 - 6.2 mi

Top 28%
×5stories
+79ft-138ft

Overall

7458

Males

6568

M50-54

6568

10K→15K

6.2 - 9.3 mi

Top 26%
×3stories
+67ft-78ft

Overall

7038

Males

6271

M50-54

6271

15K→20K

9.3 - 12.4 mi

Top 28%
×5stories
+106ft-86ft

Overall

7586

Males

6617

M50-54

6617

20K→Half

12.4 - 13.1 mi

Top 29%
×2stories
+19ft-37ft

Overall

7851

Males

6799

M50-54

6799

Half→25K

13.1 - 15.5 mi

Top 30%
×4stories
+66ft-88ft

Overall

8035

Males

6820

M50-54

6820

25K→30K

15.5 - 18.6 mi

Top 30%
×9stories
+181ft-148ft

Overall

7967

Males

6662

M50-54

6662

30K→20M

18.6 - 20.0 mi

Top 30%
×5stories
+64ft-50ft

Overall

7890

Males

6516

M50-54

6516

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

7530

Males

6198

M50-54

6198

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

6761

Males

5747

M50-54

5747

35K→23M

21.8 - 23.0 mi

Top 24%
×5stories
+23ft-63ft

Overall

6381

Males

5431

M50-54

5431

23M→24M

23.0 - 24.0 mi

Top 26%
×6stories
+12ft-82ft

Overall

6919

Males

5672

M50-54

5672

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7080

Males

5673

M50-54

5673

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

6868

Males

5500

M50-54

5500

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2stories
+22ft-21ft

Overall

7281

Males

5736

M50-54

5736

Passing Analysis

Category:
Athletes Passed
1377
Passed By
983
Net Change
+394
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7514
5K → 10K257184+73#7514#7441
10K → 15K22672+154#7441#7287
15K → 20K106130-24#7287#7311
20K → Half1433-19#7311#7330
Half → 25K55116-61#7330#7391
25K → 30K120160-40#7391#7431
30K → 20M7160+11#7431#7420
20M → 21M7368+5#7420#7415
21M → 35K5916+43#7415#7372
35K → 23M11821+97#7372#7275
23M → 24M7527+48#7275#7227
24M → 40K7133+38#7227#7189
40K → 25.2M4012+28#7189#7161
25.2M → Finish9251+41#7161#7120
TOTALS1377983+394
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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