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BOSTON MARATHON 2023

Wai Hing William Liu

Bib: 31976•M

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
32:34
Rank: #24662
Start → 5K
32:34 | 10:29/mi
10K· 6.21 mi
1:03:40
Rank: #24152 (+510)
5K → 10K
31:06 | 10:01/mi
15K· 9.32 mi
1:35:22
Rank: #24082 (+70)
10K → 15K
31:42 | 10:12/mi
20K· 12.43 mi
2:09:01
Rank: #24183 (-101)
15K → 20K
33:39 | 10:50/mi
Half· 13.11 mi
2:16:33
Rank: #24240 (-57)
20K → Half
7:32 | 11:02/mi
25K· 15.53 mi
2:43:06
Rank: #24165 (+75)
Half → 25K
26:33 | 10:57/mi
30K· 18.64 mi
3:21:34
Rank: #24382 (-217)
25K → 30K
38:28 | 12:23/mi
20M
3:38:44
Rank: #24435 (-53)
30K → 20M
17:10 | 12:38/mi
21M
3:52:08
Rank: #24452 (-17)
20M → 21M
13:24 | 13:24/mi
35K· 21.75 mi
4:01:25
Rank: #24487 (-35)
21M → 35K
9:17 | 12:25/mi
23M
4:16:25
Rank: #24466 (+21)
35K → 23M
15:00 | 11:59/mi
24M
4:26:59
Rank: #24381 (+85)
23M → 24M
10:34 | 10:34/mi
40K· 24.85 mi
4:34:44
Rank: #24213 (+168)
24M → 40K
7:45 | 9:04/mi
25.2M
4:38:21
Rank: #24146 (+67)
40K → 25.2M
3:37 | 10:29/mi
Finish· 26.22 mi
4:48:09
Rank: #24058 (+88)
25.2M → Finish
9:48 | 9:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:16:33
Pace10:25 /mi
2nd Half
Distance13.11 mi
Time2:31:36
Pace11:34 /mi
📊Positive Split: 11.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:4032:3410:2932:34
10:29
-
10K
6.21 mi12:22:461:03:4010:1531:06
10:01
-0:28
15K
9.32 mi12:54:281:35:2210:1431:42
10:12
+0:11
20K
12.43 mi13:28:072:09:0110:2333:39
10:50
+0:38
Half
13.11 mi13:35:392:16:3310:257:32
11:02
+0:12
25K
15.53 mi14:02:122:43:0610:3026:33
10:57
-0:05
30K
18.64 mi14:40:403:21:3410:4938:28
12:23
+1:26
20M
20.00 mi14:57:503:38:4410:5617:10
12:38
+0:15
21M
21.00 mi15:11:143:52:0811:0313:24
13:24
+0:46
35K
21.75 mi15:20:314:01:2511:069:17
12:25
-0:59
23M
23.00 mi15:35:314:16:2511:0915:00
11:59
-0:26
24M
24.00 mi15:46:054:26:5911:0710:34
10:34
-1:25
40K
24.85 mi15:53:504:34:4411:037:45
9:04
-1:30
25.2M
25.20 mi15:57:274:38:2111:033:37
10:29
+1:25
Finish
26.22 mi16:07:154:48:0911:009:48
9:37
-0:52

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

9:04 /mi

Average Pace

11:00 /mi

Slowest Pace

13:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:20:21

28% of race

Time at Steady Pace

1:54:29

40% of race

Time at Slower Pace

1:33:19

32% of race

Average Pace: 10:59 /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 mi11:51:4032:3410:2932:34
10:29
#24662
10K
6.21 mi12:22:461:03:4010:1531:06
10:01
#24152
15K
9.32 mi12:54:281:35:2210:1431:42
10:12
#24082
20K
12.43 mi13:28:072:09:0110:2333:39
10:50
#24183
Half
13.11 mi13:35:392:16:3310:257:32
11:02
#24240
25K
15.53 mi14:02:122:43:0610:3026:33
10:57
#24165
30K
18.64 mi14:40:403:21:3410:4938:28
12:23
#24382
20M
20.00 mi14:57:503:38:4410:5617:10
12:38
#24435
21M
21.00 mi15:11:143:52:0811:0313:24
13:24
#24452
35K
21.75 mi15:20:314:01:2511:069:17
12:25
#24487
23M
23.00 mi15:35:314:16:2511:0915:00
11:59
#24466
24M
24.00 mi15:46:054:26:5911:0710:34
10:34
#24381
40K
24.85 mi15:53:504:34:4411:037:45
9:04
#24213
25.2M
25.20 mi15:57:274:38:2111:033:37
10:29
#24146
Finish
26.22 mi16:07:154:48:0911:009:48
9:37
#24058
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi24662143881438823885(Top 90%)14033(Top 92%)14033(Top 684%)
10K6.21 mi3.10 mi24152+51014160+22814160+22823698(Top 89%)13948(Top 92%)13948(Top 680%)
15K9.32 mi3.11 mi24082+7014123+3714123+3723885(Top 90%)14033(Top 92%)14033(Top 684%)
20K12.43 mi3.11 mi24183-10114171-4814171-4824368(Top 92%)14214(Top 94%)14214(Top 693%)
Half13.11 mi0.68 mi24240-5714191-2014191-2024979(Top 94%)14469(Top 95%)14469(Top 705%)
25K15.53 mi2.42 mi24165+7514147+4414147+4423884(Top 90%)13965(Top 92%)13965(Top 681%)
30K18.64 mi3.11 mi24382-21714218-7114218-7124886(Top 93%)14358(Top 95%)14358(Top 700%)
20M20.00 mi1.36 mi24435-5314236-1814236-1824854(Top 93%)14308(Top 94%)14308(Top 697%)
21M21.00 mi1.00 mi24452-1714239-314239-324488(Top 92%)14132(Top 93%)14132(Top 689%)
35K21.75 mi0.75 mi24487-3514251-1214251-1225076(Top 94%)14361(Top 95%)14361(Top 700%)
23M23.00 mi1.25 mi24466+2114229+2214229+2223966(Top 90%)13842(Top 91%)13842(Top 675%)
24M24.00 mi1.00 mi24381+8514177+5214177+5222172(Top 83%)12957(Top 85%)12957(Top 631%)
40K24.85 mi0.85 mi24213+16814098+7914098+7916482(Top 62%)10351(Top 68%)10351(Top 504%)
25.2M25.20 mi0.35 mi24146+6714063+3514063+3519060(Top 72%)11516(Top 76%)11516(Top 561%)
Finish26.22 mi1.02 mi24058+8814024+3914024+3920535(Top 77%)12211(Top 80%)12211(Top 595%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21stories
+97ft-345ft

Overall

23885

Males

14033

M50-54

14033

5K→10K

3.1 - 6.2 mi

Top 89%
×5stories
+79ft-138ft

Overall

23698

Males

13948

M50-54

13948

10K→15K

6.2 - 9.3 mi

Top 90%
×3stories
+67ft-78ft

Overall

23885

Males

14033

M50-54

14033

15K→20K

9.3 - 12.4 mi

Top 92%
×5stories
+106ft-86ft

Overall

24368

Males

14214

M50-54

14214

20K→Half

12.4 - 13.1 mi

Top 94%
×2stories
+19ft-37ft

Overall

24979

Males

14469

M50-54

14469

Half→25K

13.1 - 15.5 mi

Top 90%
×4stories
+66ft-88ft

Overall

23884

Males

13965

M50-54

13965

25K→30K

15.5 - 18.6 mi

Top 93%
×9stories
+181ft-148ft

Overall

24886

Males

14358

M50-54

14358

30K→20M

18.6 - 20.0 mi

Top 93%
×5stories
+64ft-50ft

Overall

24854

Males

14308

M50-54

14308

20M→21M

20.0 - 21.0 mi

Top 92%
×8stories
+106ft-24ft

Overall

24488

Males

14132

M50-54

14132

21M→35K

21.0 - 21.8 mi

Top 94%
×7stories
+17ft-86ft

Overall

25076

Males

14361

M50-54

14361

35K→23M

21.8 - 23.0 mi

Top 90%
×5stories
+23ft-63ft

Overall

23966

Males

13842

M50-54

13842

23M→24M

23.0 - 24.0 mi

Top 83%
×6stories
+12ft-82ft

Overall

22172

Males

12957

M50-54

12957

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

16482

Males

10351

M50-54

10351

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

19060

Males

11516

M50-54

11516

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2stories
+22ft-21ft

Overall

20535

Males

12211

M50-54

12211

Passing Analysis

Category:
Athletes Passed
1505
Passed By
901
Net Change
+604
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24662
5K → 10K54737+510#24662#24152
10K → 15K15989+70#24152#24082
15K → 20K77178-101#24082#24183
20K → Half865-57#24183#24240
Half → 25K13459+75#24240#24165
25K → 30K42259-217#24165#24382
30K → 20M3184-53#24382#24435
20M → 21M2946-17#24435#24452
21M → 35K1449-35#24452#24487
35K → 23M5332+21#24487#24466
23M → 24M872+85#24466#24381
24M → 40K1680+168#24381#24213
40K → 25.2M670+67#24213#24146
25.2M → Finish891+88#24146#24058
TOTALS1505901+604
📊

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