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BOSTON MARATHON 2023

Chi Ming Yip

Bib: 27329•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
27:31
Rank: #19775
Start → 5K
27:31 | 8:51/mi
10K· 6.21 mi
54:14
Rank: #19293 (+482)
5K → 10K
26:43 | 8:36/mi
15K· 9.32 mi
1:21:32
Rank: #19325 (-32)
10K → 15K
27:18 | 8:47/mi
20K· 12.43 mi
1:53:19
Rank: #20857 (-1532)
15K → 20K
31:47 | 10:14/mi
Half· 13.11 mi
2:00:40
Rank: #21195 (-338)
20K → Half
7:21 | 10:46/mi
25K· 15.53 mi
2:28:48
Rank: #22128 (-933)
Half → 25K
28:08 | 11:36/mi
30K· 18.64 mi
3:04:53
Rank: #22603 (-475)
25K → 30K
36:05 | 11:37/mi
20M
3:19:32
Rank: #22574 (+29)
30K → 20M
14:39 | 10:47/mi
21M
3:30:53
Rank: #22528 (+46)
20M → 21M
11:21 | 11:21/mi
35K· 21.75 mi
3:38:07
Rank: #22441 (+87)
21M → 35K
7:14 | 9:40/mi
23M
3:50:29
Rank: #22301 (+140)
35K → 23M
12:22 | 9:53/mi
24M
4:00:12
Rank: #22200 (+101)
23M → 24M
9:43 | 9:43/mi
40K· 24.85 mi
4:10:17
Rank: #22276 (-76)
24M → 40K
10:05 | 11:48/mi
25.2M
4:14:33
Rank: #22293 (-17)
40K → 25.2M
4:16 | 12:22/mi
Finish· 26.22 mi
4:24:23
Rank: #22254 (+39)
25.2M → Finish
9:50 | 9:39/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:40
Pace9:12 /mi
2nd Half
Distance13.11 mi
Time2:23:43
Pace10:58 /mi
📊Positive Split: 19.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:4127:318:5127:31
8:51
-
10K
6.21 mi12:11:2454:148:4426:43
8:36
-0:15
15K
9.32 mi12:38:421:21:328:4527:18
8:47
+0:11
20K
12.43 mi13:10:291:53:199:0731:47
10:14
+1:27
Half
13.11 mi13:17:502:00:409:127:21
10:46
+0:32
25K
15.53 mi13:45:582:28:489:3528:08
11:36
+0:50
30K
18.64 mi14:22:033:04:539:5536:05
11:37
+0:01
20M
20.00 mi14:36:423:19:329:5914:39
10:47
-0:50
21M
21.00 mi14:48:033:30:5310:0311:21
11:21
+0:34
35K
21.75 mi14:55:173:38:0710:027:14
9:40
-1:41
23M
23.00 mi15:07:393:50:2910:0112:22
9:53
+0:13
24M
24.00 mi15:17:224:00:1210:019:43
9:43
-0:10
40K
24.85 mi15:27:274:10:1710:0410:05
11:48
+2:05
25.2M
25.20 mi15:31:434:14:3310:064:16
12:22
+0:34
Finish
26.22 mi15:41:334:24:2310:059:50
9:39
-2:43

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

8:36 /mi

Average Pace

10:05 /mi

Slowest Pace

12:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:31:22

35% of race

Time at Steady Pace

1:23:06

31% of race

Time at Slower Pace

1:29:55

34% of race

Average Pace: 10:05 /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 mi11:44:4127:318:5127:31
8:51
#19775
10K
6.21 mi12:11:2454:148:4426:43
8:36
#19293
15K
9.32 mi12:38:421:21:328:4527:18
8:47
#19325
20K
12.43 mi13:10:291:53:199:0731:47
10:14
#20857
Half
13.11 mi13:17:502:00:409:127:21
10:46
#21195
25K
15.53 mi13:45:582:28:489:3528:08
11:36
#22128
30K
18.64 mi14:22:033:04:539:5536:05
11:37
#22603
20M
20.00 mi14:36:423:19:329:5914:39
10:47
#22574
21M
21.00 mi14:48:033:30:5310:0311:21
11:21
#22528
35K
21.75 mi14:55:173:38:0710:027:14
9:40
#22441
23M
23.00 mi15:07:393:50:2910:0112:22
9:53
#22301
24M
24.00 mi15:17:224:00:1210:019:43
9:43
#22200
40K
24.85 mi15:27:274:10:1710:0410:05
11:48
#22276
25.2M
25.20 mi15:31:434:14:3310:064:16
12:22
#22293
Finish
26.22 mi15:41:334:24:2310:059:50
9:39
#22254
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi19775120781207819437(Top 73%)12067(Top 80%)12067(Top 538%)
10K6.21 mi3.10 mi19293+48211942+13611942+13618836(Top 71%)11837(Top 78%)11837(Top 528%)
15K9.32 mi3.11 mi19325-3211973-3111973-3119437(Top 73%)12067(Top 80%)12067(Top 538%)
20K12.43 mi3.11 mi20857-153212642-66912642-66923340(Top 88%)13782(Top 91%)13782(Top 615%)
Half13.11 mi0.68 mi21195-33812806-16412806-16424615(Top 92%)14316(Top 94%)14316(Top 639%)
25K15.53 mi2.42 mi22128-93313207-40113207-40124793(Top 93%)14373(Top 95%)14373(Top 641%)
30K18.64 mi3.11 mi22603-47513392-18513392-18524020(Top 90%)13972(Top 92%)13972(Top 623%)
20M20.00 mi1.36 mi22574+2913375+1713375+1722304(Top 84%)13138(Top 87%)13138(Top 586%)
21M21.00 mi1.00 mi22528+4613353+2213353+2221591(Top 81%)12793(Top 84%)12793(Top 571%)
35K21.75 mi0.75 mi22441+8713307+4613307+4620369(Top 77%)12201(Top 80%)12201(Top 544%)
23M23.00 mi1.25 mi22301+14013238+6913238+6919638(Top 74%)11863(Top 78%)11863(Top 529%)
24M24.00 mi1.00 mi22200+10113189+4913189+4919951(Top 75%)11985(Top 79%)11985(Top 535%)
40K24.85 mi0.85 mi22276-7613212-2313212-2323623(Top 89%)13595(Top 90%)13595(Top 607%)
25.2M25.20 mi0.35 mi22293-1713220-813220-823076(Top 87%)13346(Top 88%)13346(Top 596%)
Finish26.22 mi1.02 mi22254+3913194+2613194+2620628(Top 77%)12247(Top 81%)12247(Top 546%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21stories
+97ft-345ft

Overall

19437

Males

12067

M40-44

12067

5K→10K

3.1 - 6.2 mi

Top 71%
×5stories
+79ft-138ft

Overall

18836

Males

11837

M40-44

11837

10K→15K

6.2 - 9.3 mi

Top 73%
×3stories
+67ft-78ft

Overall

19437

Males

12067

M40-44

12067

15K→20K

9.3 - 12.4 mi

Top 88%
×5stories
+106ft-86ft

Overall

23340

Males

13782

M40-44

13782

20K→Half

12.4 - 13.1 mi

Top 92%
×2stories
+19ft-37ft

Overall

24615

Males

14316

M40-44

14316

Half→25K

13.1 - 15.5 mi

Top 93%
×4stories
+66ft-88ft

Overall

24793

Males

14373

M40-44

14373

25K→30K

15.5 - 18.6 mi

Top 90%
×9stories
+181ft-148ft

Overall

24020

Males

13972

M40-44

13972

30K→20M

18.6 - 20.0 mi

Top 84%
×5stories
+64ft-50ft

Overall

22304

Males

13138

M40-44

13138

20M→21M

20.0 - 21.0 mi

Top 81%
×8stories
+106ft-24ft

Overall

21591

Males

12793

M40-44

12793

21M→35K

21.0 - 21.8 mi

Top 77%
×7stories
+17ft-86ft

Overall

20369

Males

12201

M40-44

12201

35K→23M

21.8 - 23.0 mi

Top 74%
×5stories
+23ft-63ft

Overall

19638

Males

11863

M40-44

11863

23M→24M

23.0 - 24.0 mi

Top 75%
×6stories
+12ft-82ft

Overall

19951

Males

11985

M40-44

11985

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

23623

Males

13595

M40-44

13595

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1story
+13ft-16ft

Overall

23076

Males

13346

M40-44

13346

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2stories
+22ft-21ft

Overall

20628

Males

12247

M40-44

12247

Passing Analysis

Category:
Athletes Passed
1434
Passed By
3913
Net Change
-2479
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19775
5K → 10K642160+482#19775#19293
10K → 15K177209-32#19293#19325
15K → 20K121544-1532#19325#20857
20K → Half1339-338#20857#21195
Half → 25K3936-933#21195#22128
25K → 30K31506-475#22128#22603
30K → 20M7445+29#22603#22574
20M → 21M7630+46#22574#22528
21M → 35K892+87#22528#22441
35K → 23M1455+140#22441#22301
23M → 24M1054+101#22301#22200
24M → 40K1894-76#22200#22276
40K → 25.2M1128-17#22276#22293
25.2M → Finish5011+39#22293#22254
TOTALS14343913-2479
📊

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