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BOSTON MARATHON 2024

Xiaolu Cui

Bib: 18666•F

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 49%
Gender (Female)
#0 / 10924
Top 37%
Masters (Masters Women)
#0 / 6263
Top 25%
Division (F40-44)
#0 / 1613
Top 44%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:09
Rank: #15352
Start → 5K
25:09 | 8:06/mi
10K· 6.21 mi
50:09
Rank: #14919 (+433)
5K → 10K
25:00 | 8:03/mi
15K· 9.32 mi
1:15:11
Rank: #14490 (+429)
10K → 15K
25:02 | 8:03/mi
20K· 12.43 mi
1:41:09
Rank: #14321 (+169)
15K → 20K
25:58 | 8:21/mi
Half· 13.11 mi
1:46:47
Rank: #14317 (+4)
20K → Half
5:38 | 8:15/mi
25K· 15.53 mi
2:07:36
Rank: #14134 (+183)
Half → 25K
20:49 | 8:35/mi
30K· 18.64 mi
2:35:06
Rank: #13732 (+402)
25K → 30K
27:30 | 8:51/mi
20M
2:46:23
Rank: #13253 (+479)
30K → 20M
11:17 | 8:18/mi
21M
2:56:00
Rank: #13087 (+166)
20M → 21M
9:37 | 9:37/mi
35K· 21.75 mi
3:02:57
Rank: #13142 (-55)
21M → 35K
6:57 | 9:17/mi
23M
3:14:34
Rank: #13085 (+57)
35K → 23M
11:37 | 9:17/mi
24M
3:23:22
Rank: #12978 (+107)
23M → 24M
8:48 | 8:48/mi
40K· 24.85 mi
3:30:42
Rank: #12745 (+233)
24M → 40K
7:20 | 8:35/mi
25.2M
3:33:58
Rank: #12653 (+92)
40K → 25.2M
3:16 | 9:28/mi
Finish· 26.22 mi
3:42:42
Rank: #12601 (+52)
25.2M → Finish
8:44 | 8:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:47
Pace8:09 /mi
2nd Half
Distance13.11 mi
Time1:55:55
Pace8:51 /mi
📊Positive Split: 8.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:2425:098:0625:09
8:06
-
10K
6.21 mi11:42:2450:098:0425:00
8:03
-0:03
15K
9.32 mi12:07:261:15:118:0425:02
8:03
0:00
20K
12.43 mi12:33:241:41:098:0825:58
8:21
+0:18
Half
13.11 mi12:39:021:46:478:095:38
8:15
-0:06
25K
15.53 mi12:59:512:07:368:1320:49
8:35
+0:20
30K
18.64 mi13:27:212:35:068:1927:30
8:51
+0:16
20M
20.00 mi13:38:382:46:238:1911:17
8:18
-0:33
21M
21.00 mi13:48:152:56:008:239:37
9:37
+1:19
35K
21.75 mi13:55:123:02:578:256:57
9:17
-0:20
23M
23.00 mi14:06:493:14:348:2811:37
9:17
0:00
24M
24.00 mi14:15:373:23:228:288:48
8:48
-0:29
40K
24.85 mi14:22:573:30:428:297:20
8:35
-0:13
25.2M
25.20 mi14:26:133:33:588:293:16
9:28
+0:53
Finish
26.22 mi14:34:573:42:428:308:44
8:34
-0:54

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

8:03 /mi

Average Pace

8:30 /mi

Slowest Pace

9:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:11:15

86% of race

Time at Steady Pace

21:50

10% of race

Time at Slower Pace

9:37

4% of race

Average Pace: 8:30 /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 mi11:17:2425:098:0625:09
8:06
#15352
10K
6.21 mi11:42:2450:098:0425:00
8:03
#14919
15K
9.32 mi12:07:261:15:118:0425:02
8:03
#14490
20K
12.43 mi12:33:241:41:098:0825:58
8:21
#14321
Half
13.11 mi12:39:021:46:478:095:38
8:15
#14317
25K
15.53 mi12:59:512:07:368:1320:49
8:35
#14134
30K
18.64 mi13:27:212:35:068:1927:30
8:51
#13732
20M
20.00 mi13:38:382:46:238:1911:17
8:18
#13253
21M
21.00 mi13:48:152:56:008:239:37
9:37
#13087
35K
21.75 mi13:55:123:02:578:256:57
9:17
#13142
23M
23.00 mi14:06:493:14:348:2811:37
9:17
#13085
24M
24.00 mi14:15:373:23:228:288:48
8:48
#12978
40K
24.85 mi14:22:573:30:428:297:20
8:35
#12745
25.2M
25.20 mi14:26:133:33:588:293:16
9:28
#12653
Finish
26.22 mi14:34:573:42:428:308:44
8:34
#12601
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi153525156515613843(Top 54%)4269(Top 39%)4269(Top 265%)
10K6.21 mi3.10 mi14919+4334884+2724884+27214531(Top 57%)4650(Top 43%)4650(Top 288%)
15K9.32 mi3.11 mi14490+4294626+2584626+25813843(Top 54%)4269(Top 39%)4269(Top 265%)
20K12.43 mi3.11 mi14321+1694557+694557+6914031(Top 55%)4446(Top 41%)4446(Top 276%)
Half13.11 mi0.68 mi14317+44563-64563-614371(Top 56%)4670(Top 43%)4670(Top 290%)
25K15.53 mi2.42 mi14134+1834479+844479+8413509(Top 53%)4323(Top 40%)4323(Top 268%)
30K18.64 mi3.11 mi13732+4024327+1524327+15212467(Top 49%)3986(Top 36%)3986(Top 247%)
20M20.00 mi1.36 mi13253+4794131+1964131+1968432(Top 33%)2208(Top 20%)2208(Top 137%)
21M21.00 mi1.00 mi13087+1664090+414090+4111363(Top 44%)3928(Top 36%)3928(Top 244%)
35K21.75 mi0.75 mi13142-554155-654155-6514665(Top 57%)5668(Top 52%)5668(Top 351%)
23M23.00 mi1.25 mi13085+574187-324187-3212506(Top 49%)4668(Top 43%)4668(Top 289%)
24M24.00 mi1.00 mi12978+1074162+254162+2511138(Top 44%)3988(Top 37%)3988(Top 247%)
40K24.85 mi0.85 mi12745+2334086+764086+768802(Top 34%)2988(Top 27%)2988(Top 185%)
25.2M25.20 mi0.35 mi12653+924048+384048+388702(Top 34%)3026(Top 28%)3026(Top 188%)
Finish26.22 mi1.02 mi12601+524064-164064-1611920(Top 47%)4425(Top 41%)4425(Top 274%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21stories
+97ft-345ft

Overall

13843

Females

4269

F40-44

4269

5K→10K

3.1 - 6.2 mi

Top 57%
×5stories
+79ft-138ft

Overall

14531

Females

4650

F40-44

4650

10K→15K

6.2 - 9.3 mi

Top 54%
×3stories
+67ft-78ft

Overall

13843

Females

4269

F40-44

4269

15K→20K

9.3 - 12.4 mi

Top 55%
×5stories
+106ft-86ft

Overall

14031

Females

4446

F40-44

4446

20K→Half

12.4 - 13.1 mi

Top 56%
×2stories
+19ft-37ft

Overall

14371

Females

4670

F40-44

4670

Half→25K

13.1 - 15.5 mi

Top 53%
×4stories
+66ft-88ft

Overall

13509

Females

4323

F40-44

4323

25K→30K

15.5 - 18.6 mi

Top 49%
×9stories
+181ft-148ft

Overall

12467

Females

3986

F40-44

3986

30K→20M

18.6 - 20.0 mi

Top 33%
×5stories
+64ft-50ft

Overall

8432

Females

2208

F40-44

2208

20M→21M

20.0 - 21.0 mi

Top 44%
×8stories
+106ft-24ft

Overall

11363

Females

3928

F40-44

3928

21M→35K

21.0 - 21.8 mi

Top 57%
×7stories
+17ft-86ft

Overall

14665

Females

5668

F40-44

5668

35K→23M

21.8 - 23.0 mi

Top 49%
×5stories
+23ft-63ft

Overall

12506

Females

4668

F40-44

4668

23M→24M

23.0 - 24.0 mi

Top 44%
×6stories
+12ft-82ft

Overall

11138

Females

3988

F40-44

3988

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

8802

Females

2988

F40-44

2988

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

8702

Females

3026

F40-44

3026

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2stories
+22ft-21ft

Overall

11920

Females

4425

F40-44

4425

Passing Analysis

Category:
Athletes Passed
3700
Passed By
949
Net Change
+2751
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15352
5K → 10K537104+433#15352#14919
10K → 15K49364+429#14919#14490
15K → 20K314145+169#14490#14321
20K → Half4945+4#14321#14317
Half → 25K304121+183#14317#14134
25K → 30K48583+402#14134#13732
30K → 20M4812+479#13732#13253
20M → 21M20842+166#13253#13087
21M → 35K68123-55#13087#13142
35K → 23M164107+57#13142#13085
23M → 24M14336+107#13085#12978
24M → 40K24613+233#12978#12745
40K → 25.2M975+92#12745#12653
25.2M → Finish11159+52#12653#12601
TOTALS3700949+2751
📊

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