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BOSTON MARATHON 2023

Ching Ling Yu

Bib: 32010•F

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:26
Rank: #19627
Start → 5K
27:26 | 8:50/mi
10K· 6.21 mi
54:27
Rank: #19476 (+151)
5K → 10K
27:01 | 8:42/mi
15K· 9.32 mi
1:22:01
Rank: #19604 (-128)
10K → 15K
27:34 | 8:52/mi
20K· 12.43 mi
1:49:15
Rank: #19284 (+320)
15K → 20K
27:14 | 8:46/mi
Half· 13.11 mi
1:55:08
Rank: #19233 (+51)
20K → Half
5:53 | 8:37/mi
25K· 15.53 mi
2:16:57
Rank: #19176 (+57)
Half → 25K
21:49 | 9:00/mi
30K· 18.64 mi
2:44:30
Rank: #18712 (+464)
25K → 30K
27:33 | 8:52/mi
20M
2:56:16
Rank: #18416 (+296)
30K → 20M
11:46 | 8:40/mi
21M
3:05:53
Rank: #18290 (+126)
20M → 21M
9:37 | 9:37/mi
35K· 21.75 mi
3:12:18
Rank: #18183 (+107)
21M → 35K
6:25 | 8:35/mi
23M
3:23:18
Rank: #18002 (+181)
35K → 23M
11:00 | 8:47/mi
24M
3:31:51
Rank: #17870 (+132)
23M → 24M
8:33 | 8:33/mi
40K· 24.85 mi
3:39:17
Rank: #17749 (+121)
24M → 40K
7:26 | 8:42/mi
25.2M
3:42:37
Rank: #17726 (+23)
40K → 25.2M
3:20 | 9:40/mi
Finish· 26.22 mi
3:51:03
Rank: #17576 (+150)
25.2M → Finish
8:26 | 8:17/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:55:08
Pace8:47 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:55:55
Pace8:51 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:5627:268:5027:26
8:50
-
10K
6.21 mi12:14:5754:278:4627:01
8:42
-0:08
15K
9.32 mi12:42:311:22:018:4827:34
8:52
+0:10
20K
12.43 mi13:09:451:49:158:4727:14
8:46
-0:06
Half
13.11 mi13:15:381:55:088:475:53
8:37
-0:09
25K
15.53 mi13:37:272:16:578:4921:49
9:00
+0:23
30K
18.64 mi14:05:002:44:308:4927:33
8:52
-0:08
20M
20.00 mi14:16:462:56:168:4911:46
8:40
-0:12
21M
21.00 mi14:26:233:05:538:519:37
9:37
+0:57
35K
21.75 mi14:32:483:12:188:516:25
8:35
-1:02
23M
23.00 mi14:43:483:23:188:5011:00
8:47
+0:12
24M
24.00 mi14:52:213:31:518:508:33
8:33
-0:14
40K
24.85 mi14:59:473:39:178:497:26
8:42
+0:09
25.2M
25.20 mi15:03:073:42:378:503:20
9:40
+0:58
Finish
26.22 mi15:11:333:51:038:498:26
8:17
-1:23

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

8:17 /mi

Average Pace

8:49 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:38:06

94% of race

Time at Steady Pace

12:57

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:49 /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 mi11:47:5627:268:5027:26
8:50
#19627
10K
6.21 mi12:14:5754:278:4627:01
8:42
#19476
15K
9.32 mi12:42:311:22:018:4827:34
8:52
#19604
20K
12.43 mi13:09:451:49:158:4727:14
8:46
#19284
Half
13.11 mi13:15:381:55:088:475:53
8:37
#19233
25K
15.53 mi13:37:272:16:578:4921:49
9:00
#19176
30K
18.64 mi14:05:002:44:308:4927:33
8:52
#18712
20M
20.00 mi14:16:462:56:168:4911:46
8:40
#18416
21M
21.00 mi14:26:233:05:538:519:37
9:37
#18290
35K
21.75 mi14:32:483:12:188:516:25
8:35
#18183
23M
23.00 mi14:43:483:23:188:5011:00
8:47
#18002
24M
24.00 mi14:52:213:31:518:508:33
8:33
#17870
40K
24.85 mi14:59:473:39:178:497:26
8:42
#17749
25.2M
25.20 mi15:03:073:42:378:503:20
9:40
#17726
Finish
26.22 mi15:11:333:51:038:498:26
8:17
#17576
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi196277591759119921(Top 75%)7638(Top 67%)7638(Top 156%)
10K6.21 mi3.10 mi19476+1517447+1447447+14419409(Top 73%)7319(Top 64%)7319(Top 150%)
15K9.32 mi3.11 mi19604-1287514-677514-6719921(Top 75%)7638(Top 67%)7638(Top 156%)
20K12.43 mi3.11 mi19284+3207293+2217293+22118496(Top 69%)6788(Top 59%)6788(Top 139%)
Half13.11 mi0.68 mi19233+517257+367257+3618488(Top 69%)6765(Top 59%)6765(Top 139%)
25K15.53 mi2.42 mi19176+577222+357222+3518942(Top 71%)7094(Top 62%)7094(Top 145%)
30K18.64 mi3.11 mi18712+4646979+2436979+24316483(Top 62%)5781(Top 51%)5781(Top 118%)
20M20.00 mi1.36 mi18416+2966820+1596820+15914662(Top 55%)4814(Top 42%)4814(Top 99%)
21M21.00 mi1.00 mi18290+1266769+516769+5116530(Top 62%)5934(Top 52%)5934(Top 121%)
35K21.75 mi0.75 mi18183+1076712+576712+5715782(Top 59%)5577(Top 49%)5577(Top 114%)
23M23.00 mi1.25 mi18002+1816611+1016611+10114952(Top 56%)5152(Top 45%)5152(Top 105%)
24M24.00 mi1.00 mi17870+1326549+626549+6214812(Top 56%)5131(Top 45%)5131(Top 105%)
40K24.85 mi0.85 mi17749+1216484+656484+6514521(Top 55%)5051(Top 44%)5051(Top 103%)
25.2M25.20 mi0.35 mi17726+236478+66478+616022(Top 60%)5886(Top 52%)5886(Top 121%)
Finish26.22 mi1.02 mi17576+1506403+756403+7514001(Top 53%)4752(Top 42%)4752(Top 97%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21stories
+97ft-345ft

Overall

19921

Females

7638

F18-39

7638

5K→10K

3.1 - 6.2 mi

Top 73%
×5stories
+79ft-138ft

Overall

19409

Females

7319

F18-39

7319

10K→15K

6.2 - 9.3 mi

Top 75%
×3stories
+67ft-78ft

Overall

19921

Females

7638

F18-39

7638

15K→20K

9.3 - 12.4 mi

Top 69%
×5stories
+106ft-86ft

Overall

18496

Females

6788

F18-39

6788

20K→Half

12.4 - 13.1 mi

Top 69%
×2stories
+19ft-37ft

Overall

18488

Females

6765

F18-39

6765

Half→25K

13.1 - 15.5 mi

Top 71%
×4stories
+66ft-88ft

Overall

18942

Females

7094

F18-39

7094

25K→30K

15.5 - 18.6 mi

Top 62%
×9stories
+181ft-148ft

Overall

16483

Females

5781

F18-39

5781

30K→20M

18.6 - 20.0 mi

Top 55%
×5stories
+64ft-50ft

Overall

14662

Females

4814

F18-39

4814

20M→21M

20.0 - 21.0 mi

Top 62%
×8stories
+106ft-24ft

Overall

16530

Females

5934

F18-39

5934

21M→35K

21.0 - 21.8 mi

Top 59%
×7stories
+17ft-86ft

Overall

15782

Females

5577

F18-39

5577

35K→23M

21.8 - 23.0 mi

Top 56%
×5stories
+23ft-63ft

Overall

14952

Females

5152

F18-39

5152

23M→24M

23.0 - 24.0 mi

Top 56%
×6stories
+12ft-82ft

Overall

14812

Females

5131

F18-39

5131

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

14521

Females

5051

F18-39

5051

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

16022

Females

5886

F18-39

5886

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2stories
+22ft-21ft

Overall

14001

Females

4752

F18-39

4752

Passing Analysis

Category:
Athletes Passed
2791
Passed By
740
Net Change
+2051
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19627
5K → 10K406255+151#19627#19476
10K → 15K133261-128#19476#19604
15K → 20K35232+320#19604#19284
20K → Half554+51#19284#19233
Half → 25K14891+57#19233#19176
25K → 30K4739+464#19176#18712
30K → 20M2982+296#18712#18416
20M → 21M16034+126#18416#18290
21M → 35K11912+107#18290#18183
35K → 23M1887+181#18183#18002
23M → 24M1397+132#18002#17870
24M → 40K1276+121#17870#17749
40K → 25.2M318+23#17749#17726
25.2M → Finish16212+150#17726#17576
TOTALS2791740+2051
📊

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