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BOSTON MARATHON 2024

Lijun Xu

Bib: 16905•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M55-59)
#0 / 1529
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:22/mi
25:59
↑ 97↓ 3451.5%
10K· 6.21 mi
8:21/mi
51:54
↑ 79↓ 1380.4%
15K· 9.32 mi
9:11/mi
1:20:27
↑ 67↓ 78
20K· 12.43 mi
9:00/mi
1:48:25
↑ 106↓ 860.1%
Half· 13.11 mi
8:49/mi
1:54:26
↑ 19↓ 370.5%
25K· 15.53 mi
9:47/mi
2:18:09
↑ 66↓ 880.2%
30K· 18.64 mi
10:28/mi
2:50:40
↑ 181↓ 1480.2%
20M
10:58/mi
3:05:34
↑ 64↓ 500.2%
21M
12:45/mi
3:18:19
↑ 106↓ 241.6%
35K· 21.75 mi
10:14/mi
3:25:58
↑ 17↓ 861.7%
23M
10:49/mi
3:39:30
↑ 23↓ 630.6%
24M
9:31/mi
3:49:01
↓ 821.3%
40K· 24.85 mi
11:59/mi
3:59:16
↓ 200.3%
25.2M
25:02/mi
4:07:54
↑ 13↓ 160.2%
Finish· 26.22 mi
9:10/mi
4:17:14
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:26
Pace8:44 /mi
2nd Half
Distance13.11 mi
Time2:22:48
Pace10:54 /mi
📊Positive Split: 24.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:0025:598:2225:59
8:22
-
10K
6.21 mi11:43:5551:548:2125:55
8:21
-0:01
15K
9.32 mi12:12:281:20:278:3828:33
9:11
+0:50
20K
12.43 mi12:40:261:48:258:4327:58
9:00
-0:11
Half
13.11 mi12:46:271:54:268:446:01
8:49
-0:11
25K
15.53 mi13:10:102:18:098:5423:43
9:47
+0:58
30K
18.64 mi13:42:412:50:409:0932:31
10:28
+0:41
20M
20.00 mi13:57:353:05:349:1714:54
10:58
+0:30
21M
21.00 mi14:10:203:18:199:2712:45
12:45
+1:47
35K
21.75 mi14:17:593:25:589:287:39
10:14
-2:31
23M
23.00 mi14:31:313:39:309:3313:32
10:49
+0:35
24M
24.00 mi14:41:023:49:019:339:31
9:31
-1:18
40K
24.85 mi14:51:173:59:169:3810:15
11:59
+2:28
25.2M
25.20 mi14:59:554:07:549:508:38
25:02
+13:03
Finish
26.22 mi15:09:154:17:149:499:20
9:10
-15:52

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

8:21 /mi

Average Pace

9:49 /mi

Slowest Pace

25:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:45:36

88% of race

Time at Slower Pace

31:38

12% of race

Average Pace: 9:49 /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 mi11:18:0025:598:2225:59
8:22
#17022
10K
6.21 mi11:43:5551:548:2125:55
8:21
#16635
15K
9.32 mi12:12:281:20:278:3828:33
9:11
#17834
20K
12.43 mi12:40:261:48:258:4327:58
9:00
#17640
Half
13.11 mi12:46:271:54:268:446:01
8:49
#17622
25K
15.53 mi13:10:102:18:098:5423:43
9:47
#17808
30K
18.64 mi13:42:412:50:409:0932:31
10:28
#18069
20M
20.00 mi13:57:353:05:349:1714:54
10:58
#18208
21M
21.00 mi14:10:203:18:199:2712:45
12:45
#18391
35K
21.75 mi14:17:593:25:589:287:39
10:14
#18343
23M
23.00 mi14:31:313:39:309:3313:32
10:49
#18301
24M
24.00 mi14:41:023:49:019:339:31
9:31
#18141
40K
24.85 mi14:51:173:59:169:3810:15
11:59
#18227
25.2M
25.20 mi14:59:554:07:549:508:38
25:02
#18779
Finish
26.22 mi15:09:154:17:149:499:20
9:10
#18645
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi17022108031080319677(Top 77%)12021(Top 82%)12021(Top 786%)
10K6.21 mi3.10 mi16635+38710658+14510658+14516372(Top 64%)10588(Top 73%)10588(Top 692%)
15K9.32 mi3.11 mi17834-119911159-50111159-50119677(Top 77%)12021(Top 82%)12021(Top 786%)
20K12.43 mi3.11 mi17640+19411062+9711062+9717332(Top 68%)10959(Top 75%)10959(Top 717%)
Half13.11 mi0.68 mi17622+1811046+1611046+1617407(Top 68%)10911(Top 75%)10911(Top 714%)
25K15.53 mi2.42 mi17808-18611106-6011106-6018480(Top 72%)11357(Top 78%)11357(Top 743%)
30K18.64 mi3.11 mi18069-26111157-5111157-5118691(Top 73%)11249(Top 77%)11249(Top 736%)
20M20.00 mi1.36 mi18208-13911191-3411191-3419196(Top 75%)11353(Top 78%)11353(Top 743%)
21M21.00 mi1.00 mi18391-18311251-6011251-6020311(Top 79%)11782(Top 81%)11782(Top 771%)
35K21.75 mi0.75 mi18343+4811218+3311218+3317815(Top 70%)10541(Top 72%)10541(Top 689%)
23M23.00 mi1.25 mi18301+4211173+4511173+4517859(Top 70%)10481(Top 72%)10481(Top 685%)
24M24.00 mi1.00 mi18141+16011069+10411069+10414536(Top 57%)8790(Top 60%)8790(Top 575%)
40K24.85 mi0.85 mi18227-8611094-2511094-2520412(Top 80%)11648(Top 80%)11648(Top 762%)
25.2M25.20 mi0.35 mi18779-55211344-25011344-25025515(Top 100%)14551(Top 100%)14551(Top 952%)
Finish26.22 mi1.02 mi18645+13411249+9511249+9514963(Top 59%)8975(Top 62%)8975(Top 587%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

19677

Males

12021

M55-59

12021

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

16372

Males

10588

M55-59

10588

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

19677

Males

12021

M55-59

12021

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

17332

Males

10959

M55-59

10959

20K→Half

12.4 - 13.1 mi

Top 68%
×2story building
+19ft-37ft

Overall

17407

Males

10911

M55-59

10911

Half→25K

13.1 - 15.5 mi

Top 72%
×4story building
+66ft-88ft

Overall

18480

Males

11357

M55-59

11357

25K→30K

15.5 - 18.6 mi

Top 73%
×9story building
+181ft-148ft

Overall

18691

Males

11249

M55-59

11249

30K→20M

18.6 - 20.0 mi

Top 75%
×5story building
+64ft-50ft

Overall

19196

Males

11353

M55-59

11353

20M→21M

20.0 - 21.0 mi

Top 79%
×8story building
+106ft-24ft

Overall

20311

Males

11782

M55-59

11782

21M→35K

21.0 - 21.8 mi

Top 70%
×7story building
+17ft-86ft

Overall

17815

Males

10541

M55-59

10541

35K→23M

21.8 - 23.0 mi

Top 70%
×5story building
+23ft-63ft

Overall

17859

Males

10481

M55-59

10481

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

14536

Males

8790

M55-59

8790

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

20412

Males

11648

M55-59

11648

40K→25.2M

24.9 - 25.2 mi

Top 100%
×1story
+13ft-16ft

Overall

25515

Males

14551

M55-59

14551

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2story building
+22ft-21ft

Overall

14963

Males

8975

M55-59

8975

Passing Analysis

Category:
Athletes Passed
1928
Passed By
3551
Net Change
-1623
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17022
5K → 10K507120+387#17022#16635
10K → 15K431242-1199#16635#17834
15K → 20K347153+194#17834#17640
20K → Half5133+18#17640#17622
Half → 25K146332-186#17622#17808
25K → 30K174435-261#17808#18069
30K → 20M57196-139#18069#18208
20M → 21M49232-183#18208#18391
21M → 35K7931+48#18391#18343
35K → 23M12179+42#18343#18301
23M → 24M1666+160#18301#18141
24M → 40K43129-86#18141#18227
40K → 25.2M1553-552#18227#18779
25.2M → Finish14410+134#18779#18645
TOTALS19283551-1623
📊

Passing Visuals

Category:
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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