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BOSTON MARATHON 2023

Shih Hsi Fu

Bib: 27892•M

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
29:08
Rank: #21742
Start → 5K
29:08 | 9:23/mi
10K· 6.21 mi
56:32
Rank: #21039 (+703)
5K → 10K
27:24 | 8:49/mi
15K· 9.32 mi
1:24:15
Rank: #20746 (+293)
10K → 15K
27:43 | 8:55/mi
20K· 12.43 mi
1:53:10
Rank: #20808 (-62)
15K → 20K
28:55 | 9:18/mi
Half· 13.11 mi
1:59:23
Rank: #20808
20K → Half
6:13 | 9:07/mi
25K· 15.53 mi
2:22:02
Rank: #20734 (+74)
Half → 25K
22:39 | 9:21/mi
30K· 18.64 mi
2:54:20
Rank: #21003 (-269)
25K → 30K
32:18 | 10:24/mi
20M
3:11:12
Rank: #21489 (-486)
30K → 20M
16:52 | 12:25/mi
21M
3:22:09
Rank: #21425 (+64)
20M → 21M
10:57 | 10:57/mi
35K· 21.75 mi
3:29:40
Rank: #21430 (-5)
21M → 35K
7:31 | 10:03/mi
23M
3:43:15
Rank: #21469 (-39)
35K → 23M
13:35 | 10:51/mi
24M
3:53:17
Rank: #21438 (+31)
23M → 24M
10:02 | 10:02/mi
40K· 24.85 mi
4:02:25
Rank: #21459 (-21)
24M → 40K
9:08 | 10:41/mi
25.2M
4:06:34
Rank: #21484 (-25)
40K → 25.2M
4:09 | 12:02/mi
Finish· 26.22 mi
4:16:53
Rank: #21505 (-21)
25.2M → Finish
10:19 | 10:07/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:23
Pace9:06 /mi
2nd Half
Distance13.11 mi
Time2:17:30
Pace10:29 /mi
📊Positive Split: 15.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:0829:089:2329:08
9:23
-
10K
6.21 mi12:18:3256:329:0627:24
8:49
-0:34
15K
9.32 mi12:46:151:24:159:0227:43
8:55
+0:06
20K
12.43 mi13:15:101:53:109:0628:55
9:18
+0:23
Half
13.11 mi13:21:231:59:239:066:13
9:07
-0:11
25K
15.53 mi13:44:022:22:029:0922:39
9:21
+0:14
30K
18.64 mi14:16:202:54:209:2132:18
10:24
+1:03
20M
20.00 mi14:33:123:11:129:3416:52
12:25
+2:01
21M
21.00 mi14:44:093:22:099:3810:57
10:57
-1:28
35K
21.75 mi14:51:403:29:409:387:31
10:03
-0:54
23M
23.00 mi15:05:153:43:159:4213:35
10:51
+0:48
24M
24.00 mi15:15:173:53:179:4310:02
10:02
-0:49
40K
24.85 mi15:24:254:02:259:459:08
10:41
+0:39
25.2M
25.20 mi15:28:344:06:349:474:09
12:02
+1:21
Finish
26.22 mi15:38:534:16:539:4810:19
10:07
-1:55

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

8:49 /mi

Average Pace

9:48 /mi

Slowest Pace

12:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:22:02

55% of race

Time at Steady Pace

1:00:10

23% of race

Time at Slower Pace

54:41

21% of race

Average Pace: 9:48 /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 mi11:51:0829:089:2329:08
9:23
#21742
10K
6.21 mi12:18:3256:329:0627:24
8:49
#21039
15K
9.32 mi12:46:151:24:159:0227:43
8:55
#20746
20K
12.43 mi13:15:101:53:109:0628:55
9:18
#20808
Half
13.11 mi13:21:231:59:239:066:13
9:07
#20808
25K
15.53 mi13:44:022:22:029:0922:39
9:21
#20734
30K
18.64 mi14:16:202:54:209:2132:18
10:24
#21003
20M
20.00 mi14:33:123:11:129:3416:52
12:25
#21489
21M
21.00 mi14:44:093:22:099:3810:57
10:57
#21425
35K
21.75 mi14:51:403:29:409:387:31
10:03
#21430
23M
23.00 mi15:05:153:43:159:4213:35
10:51
#21469
24M
24.00 mi15:15:173:53:179:4310:02
10:02
#21438
40K
24.85 mi15:24:254:02:259:459:08
10:41
#21459
25.2M
25.20 mi15:28:344:06:349:474:09
12:02
#21484
Finish
26.22 mi15:38:534:16:539:4810:19
10:07
#21505
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi21742129591295920145(Top 76%)12374(Top 82%)12374(Top 552%)
10K6.21 mi3.10 mi21039+70312674+28512674+28520038(Top 75%)12300(Top 81%)12300(Top 549%)
15K9.32 mi3.11 mi20746+29312578+9612578+9620145(Top 76%)12374(Top 82%)12374(Top 552%)
20K12.43 mi3.11 mi20808-6212620-4212620-4220989(Top 79%)12744(Top 84%)12744(Top 569%)
Half13.11 mi0.68 mi2080812623-312623-320855(Top 78%)12674(Top 84%)12674(Top 566%)
25K15.53 mi2.42 mi20734+7412599+2412599+2420325(Top 76%)12422(Top 82%)12422(Top 554%)
30K18.64 mi3.11 mi21003-26912698-9912698-9921983(Top 83%)13062(Top 86%)13062(Top 583%)
20M20.00 mi1.36 mi21489-48612907-20912907-20924640(Top 93%)14202(Top 94%)14202(Top 634%)
21M21.00 mi1.00 mi21425+6412867+4012867+4020715(Top 78%)12394(Top 82%)12394(Top 553%)
35K21.75 mi0.75 mi21430-512856+1112856+1121397(Top 80%)12666(Top 83%)12666(Top 565%)
23M23.00 mi1.25 mi21469-3912864-812864-822050(Top 83%)12927(Top 85%)12927(Top 577%)
24M24.00 mi1.00 mi21438+3112839+2512839+2520874(Top 78%)12376(Top 82%)12376(Top 552%)
40K24.85 mi0.85 mi21459-2112836+312836+321660(Top 81%)12666(Top 83%)12666(Top 565%)
25.2M25.20 mi0.35 mi21484-2512838-212838-222540(Top 85%)13095(Top 86%)13095(Top 584%)
Finish26.22 mi1.02 mi21505-2112846-812846-822079(Top 83%)12901(Top 85%)12901(Top 576%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21stories
+97ft-345ft

Overall

20145

Males

12374

M40-44

12374

5K→10K

3.1 - 6.2 mi

Top 75%
×5stories
+79ft-138ft

Overall

20038

Males

12300

M40-44

12300

10K→15K

6.2 - 9.3 mi

Top 76%
×3stories
+67ft-78ft

Overall

20145

Males

12374

M40-44

12374

15K→20K

9.3 - 12.4 mi

Top 79%
×5stories
+106ft-86ft

Overall

20989

Males

12744

M40-44

12744

20K→Half

12.4 - 13.1 mi

Top 78%
×2stories
+19ft-37ft

Overall

20855

Males

12674

M40-44

12674

Half→25K

13.1 - 15.5 mi

Top 76%
×4stories
+66ft-88ft

Overall

20325

Males

12422

M40-44

12422

25K→30K

15.5 - 18.6 mi

Top 83%
×9stories
+181ft-148ft

Overall

21983

Males

13062

M40-44

13062

30K→20M

18.6 - 20.0 mi

Top 93%
×5stories
+64ft-50ft

Overall

24640

Males

14202

M40-44

14202

20M→21M

20.0 - 21.0 mi

Top 78%
×8stories
+106ft-24ft

Overall

20715

Males

12394

M40-44

12394

21M→35K

21.0 - 21.8 mi

Top 80%
×7stories
+17ft-86ft

Overall

21397

Males

12666

M40-44

12666

35K→23M

21.8 - 23.0 mi

Top 83%
×5stories
+23ft-63ft

Overall

22050

Males

12927

M40-44

12927

23M→24M

23.0 - 24.0 mi

Top 78%
×6stories
+12ft-82ft

Overall

20874

Males

12376

M40-44

12376

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

21660

Males

12666

M40-44

12666

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

22540

Males

13095

M40-44

13095

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2stories
+22ft-21ft

Overall

22079

Males

12901

M40-44

12901

Passing Analysis

Category:
Athletes Passed
1852
Passed By
1615
Net Change
+237
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21742
5K → 10K76461+703#21742#21039
10K → 15K36673+293#21039#20746
15K → 20K137199-62#20746#20808
20K → Half27270#20808#20808
Half → 25K14066+74#20808#20734
25K → 30K74343-269#20734#21003
30K → 20M15501-486#21003#21489
20M → 21M9935+64#21489#21425
21M → 35K3540-5#21425#21430
35K → 23M5089-39#21430#21469
23M → 24M6130+31#21469#21438
24M → 40K3455-21#21438#21459
40K → 25.2M1136-25#21459#21484
25.2M → Finish3960-21#21484#21505
TOTALS18521615+237
📊

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