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BOSTON MARATHON 2024

Xichun Liu

Bib: 12880•M

QC

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 36%
Gender (Male)
#0 / 14578
Top 47%
Masters (Masters Men)
#0 / 9729
Top 38%
Division (M50-54)
#0 / 1935
Top 39%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:04
Rank: #12656
Start → 5K
24:04 | 7:45/mi
10K· 6.21 mi
47:59
Rank: #12258 (+398)
5K → 10K
23:55 | 7:42/mi
15K· 9.32 mi
1:11:54
Rank: #11840 (+418)
10K → 15K
23:55 | 7:42/mi
20K· 12.43 mi
1:36:02
Rank: #11362 (+478)
15K → 20K
24:08 | 7:46/mi
Half· 13.11 mi
1:41:18
Rank: #11339 (+23)
20K → Half
5:16 | 7:43/mi
25K· 15.53 mi
2:00:38
Rank: #11047 (+292)
Half → 25K
19:20 | 7:58/mi
30K· 18.64 mi
2:25:54
Rank: #10444 (+603)
25K → 30K
25:16 | 8:08/mi
20M
2:37:41
Rank: #10388 (+56)
30K → 20M
11:47 | 8:40/mi
21M
2:46:33
Rank: #10158 (+230)
20M → 21M
8:52 | 8:52/mi
35K· 21.75 mi
2:52:52
Rank: #10144 (+14)
21M → 35K
6:19 | 8:27/mi
23M
3:03:14
Rank: #9893 (+251)
35K → 23M
10:22 | 8:17/mi
24M
3:10:59
Rank: #9611 (+282)
23M → 24M
7:45 | 7:45/mi
40K· 24.85 mi
3:17:56
Rank: #9444 (+167)
24M → 40K
6:57 | 8:08/mi
25.2M
3:21:01
Rank: #9381 (+63)
40K → 25.2M
3:05 | 8:56/mi
Finish· 26.22 mi
3:28:53
Rank: #9248 (+133)
25.2M → Finish
7:52 | 7:43/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:18
Pace7:44 /mi
2nd Half
Distance13.11 mi
Time1:47:35
Pace8:12 /mi
📊Positive Split: 6.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:0324:047:4524:04
7:45
-
10K
6.21 mi11:16:5847:597:4323:55
7:42
-0:03
15K
9.32 mi11:40:531:11:547:4323:55
7:42
0:00
20K
12.43 mi12:05:011:36:027:4424:08
7:46
+0:04
Half
13.11 mi12:10:171:41:187:445:16
7:43
-0:03
25K
15.53 mi12:29:372:00:387:4619:20
7:58
+0:15
30K
18.64 mi12:54:532:25:547:5025:16
8:08
+0:10
20M
20.00 mi13:06:402:37:417:5311:47
8:40
+0:32
21M
21.00 mi13:15:322:46:337:568:52
8:52
+0:12
35K
21.75 mi13:21:512:52:527:576:19
8:27
-0:25
23M
23.00 mi13:32:133:03:147:5810:22
8:17
-0:10
24M
24.00 mi13:39:583:10:597:577:45
7:45
-0:32
40K
24.85 mi13:46:553:17:567:586:57
8:08
+0:23
25.2M
25.20 mi13:50:003:21:017:593:05
8:56
+0:48
Finish
26.22 mi13:57:523:28:537:587:52
7:43
-1:13

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

7:42 /mi

Average Pace

7:58 /mi

Slowest Pace

8:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:05:09

89% of race

Time at Steady Pace

23:44

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:58 /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 mi10:53:0324:047:4524:04
7:45
#12656
10K
6.21 mi11:16:5847:597:4323:55
7:42
#12258
15K
9.32 mi11:40:531:11:547:4323:55
7:42
#11840
20K
12.43 mi12:05:011:36:027:4424:08
7:46
#11362
Half
13.11 mi12:10:171:41:187:445:16
7:43
#11339
25K
15.53 mi12:29:372:00:387:4619:20
7:58
#11047
30K
18.64 mi12:54:532:25:547:5025:16
8:08
#10444
20M
20.00 mi13:06:402:37:417:5311:47
8:40
#10388
21M
21.00 mi13:15:322:46:337:568:52
8:52
#10158
35K
21.75 mi13:21:512:52:527:576:19
8:27
#10144
23M
23.00 mi13:32:133:03:147:5810:22
8:17
#9893
24M
24.00 mi13:39:583:10:597:577:45
7:45
#9611
40K
24.85 mi13:46:553:17:567:586:57
8:08
#9444
25.2M
25.20 mi13:50:003:21:017:593:05
8:56
#9381
Finish
26.22 mi13:57:523:28:537:587:52
7:43
#9248
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi126569111911111160(Top 44%)8364(Top 57%)8364(Top 432%)
10K6.21 mi3.10 mi12258+3988910+2018910+20111835(Top 46%)8703(Top 60%)8703(Top 450%)
15K9.32 mi3.11 mi11840+4188695+2158695+21511160(Top 44%)8364(Top 57%)8364(Top 432%)
20K12.43 mi3.11 mi11362+4788462+2338462+23310181(Top 40%)7739(Top 53%)7739(Top 400%)
Half13.11 mi0.68 mi11339+238452+108452+1010668(Top 42%)7997(Top 55%)7997(Top 413%)
25K15.53 mi2.42 mi11047+2928273+1798273+17910013(Top 39%)7499(Top 51%)7499(Top 388%)
30K18.64 mi3.11 mi10444+6037877+3967877+3968627(Top 34%)6574(Top 45%)6574(Top 340%)
20M20.00 mi1.36 mi10388+567795+827795+8210363(Top 41%)7201(Top 49%)7201(Top 372%)
21M21.00 mi1.00 mi10158+2307628+1677628+1677913(Top 31%)5764(Top 40%)5764(Top 298%)
35K21.75 mi0.75 mi10144+147582+467582+4610364(Top 41%)6912(Top 47%)6912(Top 357%)
23M23.00 mi1.25 mi9893+2517388+1947388+1947210(Top 28%)5189(Top 36%)5189(Top 268%)
24M24.00 mi1.00 mi9611+2827203+1857203+1855284(Top 21%)4079(Top 28%)4079(Top 211%)
40K24.85 mi0.85 mi9444+1677079+1247079+1246422(Top 25%)4568(Top 31%)4568(Top 236%)
25.2M25.20 mi0.35 mi9381+637028+517028+516271(Top 25%)4424(Top 30%)4424(Top 229%)
Finish26.22 mi1.02 mi9248+1336919+1096919+1096849(Top 27%)4793(Top 33%)4793(Top 248%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21stories
+97ft-345ft

Overall

11160

Males

8364

M50-54

8364

5K→10K

3.1 - 6.2 mi

Top 46%
×5stories
+79ft-138ft

Overall

11835

Males

8703

M50-54

8703

10K→15K

6.2 - 9.3 mi

Top 44%
×3stories
+67ft-78ft

Overall

11160

Males

8364

M50-54

8364

15K→20K

9.3 - 12.4 mi

Top 40%
×5stories
+106ft-86ft

Overall

10181

Males

7739

M50-54

7739

20K→Half

12.4 - 13.1 mi

Top 42%
×2stories
+19ft-37ft

Overall

10668

Males

7997

M50-54

7997

Half→25K

13.1 - 15.5 mi

Top 39%
×4stories
+66ft-88ft

Overall

10013

Males

7499

M50-54

7499

25K→30K

15.5 - 18.6 mi

Top 34%
×9stories
+181ft-148ft

Overall

8627

Males

6574

M50-54

6574

30K→20M

18.6 - 20.0 mi

Top 41%
×5stories
+64ft-50ft

Overall

10363

Males

7201

M50-54

7201

20M→21M

20.0 - 21.0 mi

Top 31%
×8stories
+106ft-24ft

Overall

7913

Males

5764

M50-54

5764

21M→35K

21.0 - 21.8 mi

Top 41%
×7stories
+17ft-86ft

Overall

10364

Males

6912

M50-54

6912

35K→23M

21.8 - 23.0 mi

Top 28%
×5stories
+23ft-63ft

Overall

7210

Males

5189

M50-54

5189

23M→24M

23.0 - 24.0 mi

Top 21%
×6stories
+12ft-82ft

Overall

5284

Males

4079

M50-54

4079

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6422

Males

4568

M50-54

4568

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

6271

Males

4424

M50-54

4424

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2stories
+22ft-21ft

Overall

6849

Males

4793

M50-54

4793

Passing Analysis

Category:
Athletes Passed
4029*
Passed By
621
Net Change
+3408
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12656
5K → 10K524126+398#12656#12258
10K → 15K47254+418#12258#11840
15K → 20K50830+478#11840#11362
20K → Half5431+23#11362#11339
Half → 25K35563+292#11339#11047
25K → 30K63633+603#11047#10444
30K → 20M168112+56#10444#10388
20M → 21M25828+230#10388#10158
21M → 35K8268+14#10158#10144
35K → 23M276*25+251#10144#9893
23M → 24M284*2+282#9893#9611
24M → 40K18518+167#9611#9444
40K → 25.2M729+63#9444#9381
25.2M → Finish15522+133#9381#9248
TOTALS4029*621+3408

* 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