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BOSTON MARATHON 2024

Jianjiang Xu

Bib: 13442•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 33%
Gender (Male)
#0 / 14578
Top 44%
Masters (Masters Men)
#0 / 9729
Top 34%
Division (M60-64)
#0 / 1173
Top 7%
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
7:24/mi
22:58
↑ 97↓ 3451.5%
10K· 6.21 mi
7:24/mi
45:58
↑ 79↓ 1380.4%
15K· 9.32 mi
7:32/mi
1:09:21
↑ 67↓ 78
20K· 12.43 mi
7:41/mi
1:33:14
↑ 106↓ 860.1%
Half· 13.11 mi
7:21/mi
1:38:15
↑ 19↓ 370.5%
25K· 15.53 mi
7:39/mi
1:56:48
↑ 66↓ 880.2%
30K· 18.64 mi
8:02/mi
2:21:44
↑ 181↓ 1480.2%
20M
8:16/mi
2:32:58
↑ 64↓ 500.2%
21M
9:03/mi
2:42:01
↑ 106↓ 241.6%
35K· 21.75 mi
7:56/mi
2:47:57
↑ 17↓ 861.7%
23M
8:29/mi
2:58:34
↑ 23↓ 630.6%
24M
8:21/mi
3:06:55
↓ 821.3%
40K· 24.85 mi
8:36/mi
3:14:16
↓ 200.3%
25.2M
9:37/mi
3:17:35
↑ 13↓ 160.2%
Finish· 26.22 mi
8:16/mi
3:26:00
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:15
Pace7:30 /mi
2nd Half
Distance13.11 mi
Time1:47:45
Pace8:13 /mi
📊Positive Split: 9.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:0122:587:2422:58
7:24
-
10K
6.21 mi11:16:0145:587:2423:00
7:24
0:00
15K
9.32 mi11:39:241:09:217:2623:23
7:32
+0:08
20K
12.43 mi12:03:171:33:147:3023:53
7:41
+0:09
Half
13.11 mi12:08:181:38:157:305:01
7:21
-0:20
25K
15.53 mi12:26:511:56:487:3118:33
7:39
+0:18
30K
18.64 mi12:51:472:21:447:3624:56
8:02
+0:23
20M
20.00 mi13:03:012:32:587:3911:14
8:16
+0:14
21M
21.00 mi13:12:042:42:017:439:03
9:03
+0:47
35K
21.75 mi13:18:002:47:577:435:56
7:56
-1:07
23M
23.00 mi13:28:372:58:347:4610:37
8:29
+0:33
24M
24.00 mi13:36:583:06:557:478:21
8:21
-0:08
40K
24.85 mi13:44:193:14:167:497:21
8:36
+0:15
25.2M
25.20 mi13:47:383:17:357:503:19
9:37
+1:01
Finish
26.22 mi13:56:033:26:007:528:25
8:16
-1:21

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

7:21 /mi

Average Pace

7:52 /mi

Slowest Pace

9:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:48

57% of race

Time at Steady Pace

50:31

25% of race

Time at Slower Pace

38:41

19% of race

Average Pace: 7:51 /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 mi10:53:0122:587:2422:58
7:24
#9849
10K
6.21 mi11:16:0145:587:2423:00
7:24
#9624
15K
9.32 mi11:39:241:09:217:2623:23
7:32
#9659
20K
12.43 mi12:03:171:33:147:3023:53
7:41
#9641
Half
13.11 mi12:08:181:38:157:305:01
7:21
#9548
25K
15.53 mi12:26:511:56:487:3118:33
7:39
#9221
30K
18.64 mi12:51:472:21:447:3624:56
8:02
#8892
20M
20.00 mi13:03:012:32:587:3911:14
8:16
#8755
21M
21.00 mi13:12:042:42:017:439:03
9:03
#8679
35K
21.75 mi13:18:002:47:577:435:56
7:56
#8571
23M
23.00 mi13:28:372:58:347:4610:37
8:29
#8466
24M
24.00 mi13:36:583:06:557:478:21
8:21
#8431
40K
24.85 mi13:44:193:14:167:497:21
8:36
#8393
25.2M
25.20 mi13:47:383:17:357:503:19
9:37
#8387
Finish
26.22 mi13:56:033:26:007:528:25
8:16
#8410
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi9849787178719883(Top 39%)7736(Top 53%)7736(Top 660%)
10K6.21 mi3.10 mi9624+2257725+1467725+1469438(Top 37%)7569(Top 52%)7569(Top 645%)
15K9.32 mi3.11 mi9659-357699+267699+269883(Top 39%)7736(Top 53%)7736(Top 660%)
20K12.43 mi3.11 mi9641+187659+407659+409647(Top 38%)7476(Top 51%)7476(Top 637%)
Half13.11 mi0.68 mi9548+937599+607599+608017(Top 31%)6631(Top 45%)6631(Top 565%)
25K15.53 mi2.42 mi9221+3277391+2087391+2087962(Top 31%)6405(Top 44%)6405(Top 546%)
30K18.64 mi3.11 mi8892+3297105+2867105+2867999(Top 31%)6213(Top 43%)6213(Top 530%)
20M20.00 mi1.36 mi8755+1376969+1366969+1368171(Top 32%)6087(Top 42%)6087(Top 519%)
21M21.00 mi1.00 mi8679+766873+966873+968806(Top 34%)6193(Top 42%)6193(Top 528%)
35K21.75 mi0.75 mi8571+1086779+946779+947339(Top 29%)5415(Top 37%)5415(Top 462%)
23M23.00 mi1.25 mi8466+1056654+1256654+1258347(Top 33%)5775(Top 40%)5775(Top 492%)
24M24.00 mi1.00 mi8431+356586+686586+688540(Top 33%)5788(Top 40%)5788(Top 493%)
40K24.85 mi0.85 mi8393+386518+686518+688825(Top 35%)5809(Top 40%)5809(Top 495%)
25.2M25.20 mi0.35 mi8387+66490+286490+289177(Top 36%)5914(Top 41%)5914(Top 504%)
Finish26.22 mi1.02 mi8410-236469+216469+2110069(Top 39%)6492(Top 45%)6492(Top 553%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21story building
+97ft-345ft

Overall

9883

Males

7736

M60-64

7736

5K→10K

3.1 - 6.2 mi

Top 37%
×5story building
+79ft-138ft

Overall

9438

Males

7569

M60-64

7569

10K→15K

6.2 - 9.3 mi

Top 39%
×3story building
+67ft-78ft

Overall

9883

Males

7736

M60-64

7736

15K→20K

9.3 - 12.4 mi

Top 38%
×5story building
+106ft-86ft

Overall

9647

Males

7476

M60-64

7476

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

8017

Males

6631

M60-64

6631

Half→25K

13.1 - 15.5 mi

Top 31%
×4story building
+66ft-88ft

Overall

7962

Males

6405

M60-64

6405

25K→30K

15.5 - 18.6 mi

Top 31%
×9story building
+181ft-148ft

Overall

7999

Males

6213

M60-64

6213

30K→20M

18.6 - 20.0 mi

Top 32%
×5story building
+64ft-50ft

Overall

8171

Males

6087

M60-64

6087

20M→21M

20.0 - 21.0 mi

Top 34%
×8story building
+106ft-24ft

Overall

8806

Males

6193

M60-64

6193

21M→35K

21.0 - 21.8 mi

Top 29%
×7story building
+17ft-86ft

Overall

7339

Males

5415

M60-64

5415

35K→23M

21.8 - 23.0 mi

Top 33%
×5story building
+23ft-63ft

Overall

8347

Males

5775

M60-64

5775

23M→24M

23.0 - 24.0 mi

Top 33%
×6story building
+12ft-82ft

Overall

8540

Males

5788

M60-64

5788

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

8825

Males

5809

M60-64

5809

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

9177

Males

5914

M60-64

5914

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2story building
+22ft-21ft

Overall

10069

Males

6492

M60-64

6492

Passing Analysis

Category:
Athletes Passed
2680
Passed By
1241
Net Change
+1439
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9849
5K → 10K367142+225#9849#9624
10K → 15K190225-35#9624#9659
15K → 20K226208+18#9659#9641
20K → Half985+93#9641#9548
Half → 25K36740+327#9548#9221
25K → 30K450121+329#9221#8892
30K → 20M19659+137#8892#8755
20M → 21M15175+76#8755#8679
21M → 35K12719+108#8679#8571
35K → 23M18075+105#8571#8466
23M → 24M11075+35#8466#8431
24M → 40K10264+38#8431#8393
40K → 25.2M4741+6#8393#8387
25.2M → Finish6992-23#8387#8410
TOTALS26801241+1439
📊

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