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BOSTON MARATHON 2023

Wenjin Cui

Bib: 9455•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 47%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M45-49)
#0 / 2252
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:34
Rank: #7887
Start → 5K
22:34 | 7:16/mi
10K· 6.21 mi
44:37
Rank: #7636 (+251)
5K → 10K
22:03 | 7:06/mi
15K· 9.32 mi
1:07:25
Rank: #8002 (-366)
10K → 15K
22:48 | 7:20/mi
20K· 12.43 mi
1:31:28
Rank: #8700 (-698)
15K → 20K
24:03 | 7:44/mi
Half· 13.11 mi
1:36:42
Rank: #8825 (-125)
20K → Half
5:14 | 7:40/mi
25K· 15.53 mi
1:56:23
Rank: #9576 (-751)
Half → 25K
19:41 | 8:07/mi
30K· 18.64 mi
2:22:40
Rank: #10383 (-807)
25K → 30K
26:17 | 8:28/mi
20M
2:34:23
Rank: #10710 (-327)
30K → 20M
11:43 | 8:37/mi
21M
2:43:48
Rank: #11003 (-293)
20M → 21M
9:25 | 9:25/mi
35K· 21.75 mi
2:50:13
Rank: #11200 (-197)
21M → 35K
6:25 | 8:35/mi
23M
3:01:23
Rank: #11519 (-319)
35K → 23M
11:10 | 8:55/mi
24M
3:10:12
Rank: #11787 (-268)
23M → 24M
8:49 | 8:49/mi
40K· 24.85 mi
3:17:58
Rank: #12003 (-216)
24M → 40K
7:46 | 9:05/mi
25.2M
3:21:20
Rank: #12097 (-94)
40K → 25.2M
3:22 | 9:46/mi
Finish· 26.22 mi
3:30:32
Rank: #12419 (-322)
25.2M → Finish
9:12 | 9:02/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:42
Pace7:23 /mi
2nd Half
Distance13.11 mi
Time1:53:50
Pace8:41 /mi
📊Positive Split: 17.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:2922:347:1622:34
7:16
-
10K
6.21 mi11:10:3244:377:1122:03
7:06
-0:10
15K
9.32 mi11:33:201:07:257:1422:48
7:20
+0:14
20K
12.43 mi11:57:231:31:287:2224:03
7:44
+0:24
Half
13.11 mi12:02:371:36:427:235:14
7:40
-0:04
25K
15.53 mi12:22:181:56:237:3019:41
8:07
+0:27
30K
18.64 mi12:48:352:22:407:3926:17
8:28
+0:21
20M
20.00 mi13:00:182:34:237:4311:43
8:37
+0:09
21M
21.00 mi13:09:432:43:487:489:25
9:25
+0:48
35K
21.75 mi13:16:082:50:137:506:25
8:35
-0:50
23M
23.00 mi13:27:183:01:237:5311:10
8:55
+0:20
24M
24.00 mi13:36:073:10:127:568:49
8:49
-0:06
40K
24.85 mi13:43:533:17:587:587:46
9:05
+0:16
25.2M
25.20 mi13:47:153:21:207:593:22
9:46
+0:41
Finish
26.22 mi13:56:273:30:328:029:12
9:02
-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

7:06 /mi

Average Pace

8:02 /mi

Slowest Pace

9:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:23

55% of race

Time at Steady Pace

1:04:24

31% of race

Time at Slower Pace

29:45

14% of race

Average Pace: 8:02 /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 mi10:48:2922:347:1622:34
7:16
#7887
10K
6.21 mi11:10:3244:377:1122:03
7:06
#7636
15K
9.32 mi11:33:201:07:257:1422:48
7:20
#8002
20K
12.43 mi11:57:231:31:287:2224:03
7:44
#8700
Half
13.11 mi12:02:371:36:427:235:14
7:40
#8825
25K
15.53 mi12:22:181:56:237:3019:41
8:07
#9576
30K
18.64 mi12:48:352:22:407:3926:17
8:28
#10383
20M
20.00 mi13:00:182:34:237:4311:43
8:37
#10710
21M
21.00 mi13:09:432:43:487:489:25
9:25
#11003
35K
21.75 mi13:16:082:50:137:506:25
8:35
#11200
23M
23.00 mi13:27:183:01:237:5311:10
8:55
#11519
24M
24.00 mi13:36:073:10:127:568:49
8:49
#11787
40K
24.85 mi13:43:533:17:587:587:46
9:05
#12003
25.2M
25.20 mi13:47:153:21:207:593:22
9:46
#12097
Finish
26.22 mi13:56:273:30:328:029:12
9:02
#12419
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi7887690369038868(Top 33%)7464(Top 49%)7464(Top 331%)
10K6.21 mi3.10 mi7636+2516732+1716732+1717427(Top 28%)6552(Top 43%)6552(Top 291%)
15K9.32 mi3.11 mi8002-3666957-2256957-2258868(Top 33%)7464(Top 49%)7464(Top 331%)
20K12.43 mi3.11 mi8700-6987377-4207377-42011233(Top 42%)8689(Top 57%)8689(Top 386%)
Half13.11 mi0.68 mi8825-1257447-707447-7011597(Top 44%)8910(Top 59%)8910(Top 396%)
25K15.53 mi2.42 mi9576-7517885-4387885-43813604(Top 51%)9600(Top 63%)9600(Top 426%)
30K18.64 mi3.11 mi10383-8078277-3928277-39214035(Top 53%)9665(Top 64%)9665(Top 429%)
20M20.00 mi1.36 mi10710-3278408-1318408-13114367(Top 54%)9713(Top 64%)9713(Top 431%)
21M21.00 mi1.00 mi11003-2938526-1188526-11815524(Top 58%)10133(Top 67%)10133(Top 450%)
35K21.75 mi0.75 mi11200-1978611-858611-8515678(Top 59%)10133(Top 67%)10133(Top 450%)
23M23.00 mi1.25 mi11519-3198724-1138724-11315608(Top 59%)10066(Top 66%)10066(Top 447%)
24M24.00 mi1.00 mi11787-2688828-1048828-10416251(Top 61%)10275(Top 68%)10275(Top 456%)
40K24.85 mi0.85 mi12003-2168885-578885-5716537(Top 62%)10362(Top 68%)10362(Top 460%)
25.2M25.20 mi0.35 mi12097-948918-338918-3316311(Top 61%)10234(Top 67%)10234(Top 454%)
Finish26.22 mi1.02 mi12419-3229046-1289046-12818079(Top 68%)11108(Top 73%)11108(Top 493%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21stories
+97ft-345ft

Overall

8868

Males

7464

M45-49

7464

5K→10K

3.1 - 6.2 mi

Top 28%
×5stories
+79ft-138ft

Overall

7427

Males

6552

M45-49

6552

10K→15K

6.2 - 9.3 mi

Top 33%
×3stories
+67ft-78ft

Overall

8868

Males

7464

M45-49

7464

15K→20K

9.3 - 12.4 mi

Top 42%
×5stories
+106ft-86ft

Overall

11233

Males

8689

M45-49

8689

20K→Half

12.4 - 13.1 mi

Top 44%
×2stories
+19ft-37ft

Overall

11597

Males

8910

M45-49

8910

Half→25K

13.1 - 15.5 mi

Top 51%
×4stories
+66ft-88ft

Overall

13604

Males

9600

M45-49

9600

25K→30K

15.5 - 18.6 mi

Top 53%
×9stories
+181ft-148ft

Overall

14035

Males

9665

M45-49

9665

30K→20M

18.6 - 20.0 mi

Top 54%
×5stories
+64ft-50ft

Overall

14367

Males

9713

M45-49

9713

20M→21M

20.0 - 21.0 mi

Top 58%
×8stories
+106ft-24ft

Overall

15524

Males

10133

M45-49

10133

21M→35K

21.0 - 21.8 mi

Top 59%
×7stories
+17ft-86ft

Overall

15678

Males

10133

M45-49

10133

35K→23M

21.8 - 23.0 mi

Top 59%
×5stories
+23ft-63ft

Overall

15608

Males

10066

M45-49

10066

23M→24M

23.0 - 24.0 mi

Top 61%
×6stories
+12ft-82ft

Overall

16251

Males

10275

M45-49

10275

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

16537

Males

10362

M45-49

10362

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

16311

Males

10234

M45-49

10234

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2stories
+22ft-21ft

Overall

18079

Males

11108

M45-49

11108

Passing Analysis

Category:
Athletes Passed
629*
Passed By
5160
Net Change
-4532
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7887
5K → 10K377126+251#7887#7636
10K → 15K34400-366#7636#8002
15K → 20K23721-698#8002#8700
20K → Half2127-125#8700#8825
Half → 25K17768-751#8825#9576
25K → 30K36842-807#9576#10383
30K → 20M20*347-327#10383#10710
20M → 21M16309-293#10710#11003
21M → 35K13210-197#11003#11200
35K → 23M30349-319#11200#11519
23M → 24M16284-268#11519#11787
24M → 40K24240-216#11787#12003
40K → 25.2M7101-94#12003#12097
25.2M → Finish14336-322#12097#12419
TOTALS629*5160-4532

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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