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BOSTON MARATHON 2024

Zhuangrong Xu

Bib: 8712•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 43%
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Top 44%
Division (M50-54)
#0 / 1935
Top 47%
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
7:15/mi
22:32
↑ 97↓ 3451.5%
10K· 6.21 mi
7:25/mi
45:36
↑ 79↓ 1380.4%
15K· 9.32 mi
7:30/mi
1:08:53
↑ 67↓ 78
20K· 12.43 mi
7:36/mi
1:32:31
↑ 106↓ 860.1%
Half· 13.11 mi
7:33/mi
1:37:40
↑ 19↓ 370.5%
25K· 15.53 mi
7:51/mi
1:56:43
↑ 66↓ 880.2%
30K· 18.64 mi
8:27/mi
2:22:58
↑ 181↓ 1480.2%
20M
9:12/mi
2:35:28
↑ 64↓ 500.2%
21M
10:58/mi
2:46:26
↑ 106↓ 241.6%
35K· 21.75 mi
9:19/mi
2:53:24
↑ 17↓ 861.7%
23M
9:23/mi
3:05:09
↑ 23↓ 630.6%
24M
8:59/mi
3:14:08
↓ 821.3%
40K· 24.85 mi
9:49/mi
3:22:32
↓ 200.3%
25.2M
10:55/mi
3:26:18
↑ 13↓ 160.2%
Finish· 26.22 mi
8:55/mi
3:35:23
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:40
Pace7:27 /mi
2nd Half
Distance13.11 mi
Time1:57:43
Pace8:59 /mi
📊Positive Split: 20.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:5722:327:1522:32
7:15
-
10K
6.21 mi11:11:0145:367:2023:04
7:25
+0:10
15K
9.32 mi11:34:181:08:537:2323:17
7:30
+0:05
20K
12.43 mi11:57:561:32:317:2723:38
7:36
+0:06
Half
13.11 mi12:03:051:37:407:275:09
7:33
-0:03
25K
15.53 mi12:22:081:56:437:3119:03
7:51
+0:18
30K
18.64 mi12:48:232:22:587:4026:15
8:27
+0:36
20M
20.00 mi13:00:532:35:287:4612:30
9:12
+0:45
21M
21.00 mi13:11:512:46:267:5610:58
10:58
+1:46
35K
21.75 mi13:18:492:53:247:586:58
9:19
-1:39
23M
23.00 mi13:30:343:05:098:0311:45
9:23
+0:04
24M
24.00 mi13:39:333:14:088:058:59
8:59
-0:24
40K
24.85 mi13:47:573:22:328:098:24
9:49
+0:50
25.2M
25.20 mi13:51:433:26:188:113:46
10:55
+1:06
Finish
26.22 mi14:00:483:35:238:139:05
8:55
-2:00

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

7:15 /mi

Average Pace

8:13 /mi

Slowest Pace

10:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:43

54% of race

Time at Steady Pace

1:15:32

35% of race

Time at Slower Pace

23:08

11% of race

Average Pace: 8:13 /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 mi10:47:5722:327:1522:32
7:15
#8819
10K
6.21 mi11:11:0145:367:2023:04
7:25
#9185
15K
9.32 mi11:34:181:08:537:2323:17
7:30
#9275
20K
12.43 mi11:57:561:32:317:2723:38
7:36
#9208
Half
13.11 mi12:03:051:37:407:275:09
7:33
#9215
25K
15.53 mi12:22:081:56:437:3119:03
7:51
#9178
30K
18.64 mi12:48:232:22:587:4026:15
8:27
#9322
20M
20.00 mi13:00:532:35:287:4612:30
9:12
#9595
21M
21.00 mi13:11:512:46:267:5610:58
10:58
#10123
35K
21.75 mi13:18:492:53:247:586:58
9:19
#10312
23M
23.00 mi13:30:343:05:098:0311:45
9:23
#10425
24M
24.00 mi13:39:333:14:088:058:59
8:59
#10489
40K
24.85 mi13:47:573:22:328:098:24
9:49
#10676
25.2M
25.20 mi13:51:433:26:188:113:46
10:55
#10743
Finish
26.22 mi14:00:483:35:238:139:05
8:55
#10861
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi8819730173019638(Top 38%)7625(Top 52%)7625(Top 394%)
10K6.21 mi3.10 mi9185-3667476-1757476-1759604(Top 38%)7662(Top 53%)7662(Top 396%)
15K9.32 mi3.11 mi9275-907511-357511-359638(Top 38%)7625(Top 52%)7625(Top 394%)
20K12.43 mi3.11 mi9208+677425+867425+869125(Top 36%)7236(Top 50%)7236(Top 374%)
Half13.11 mi0.68 mi9215-7742574259457(Top 37%)7410(Top 51%)7410(Top 383%)
25K15.53 mi2.42 mi9178+377368+577368+579291(Top 36%)7131(Top 49%)7131(Top 369%)
30K18.64 mi3.11 mi9322-1447333+357333+3510380(Top 41%)7474(Top 51%)7474(Top 386%)
20M20.00 mi1.36 mi9595-2737398-657398-6513108(Top 51%)8452(Top 58%)8452(Top 437%)
21M21.00 mi1.00 mi10123-5287609-2117609-21116228(Top 64%)9750(Top 67%)9750(Top 504%)
35K21.75 mi0.75 mi10312-1897666-577666-5714727(Top 58%)8977(Top 62%)8977(Top 464%)
23M23.00 mi1.25 mi10425-1137659+77659+712986(Top 51%)8054(Top 55%)8054(Top 416%)
24M24.00 mi1.00 mi10489-647647+127647+1212055(Top 47%)7586(Top 52%)7586(Top 392%)
40K24.85 mi0.85 mi10676-1877683-367683-3614332(Top 56%)8607(Top 59%)8607(Top 445%)
25.2M25.20 mi0.35 mi10743-677698-157698-1514192(Top 56%)8504(Top 58%)8504(Top 439%)
Finish26.22 mi1.02 mi10861-1187709-117709-1113751(Top 54%)8359(Top 57%)8359(Top 432%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

9638

Males

7625

M50-54

7625

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

9604

Males

7662

M50-54

7662

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

9638

Males

7625

M50-54

7625

15K→20K

9.3 - 12.4 mi

Top 36%
×5story building
+106ft-86ft

Overall

9125

Males

7236

M50-54

7236

20K→Half

12.4 - 13.1 mi

Top 37%
×2story building
+19ft-37ft

Overall

9457

Males

7410

M50-54

7410

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

9291

Males

7131

M50-54

7131

25K→30K

15.5 - 18.6 mi

Top 41%
×9story building
+181ft-148ft

Overall

10380

Males

7474

M50-54

7474

30K→20M

18.6 - 20.0 mi

Top 51%
×5story building
+64ft-50ft

Overall

13108

Males

8452

M50-54

8452

20M→21M

20.0 - 21.0 mi

Top 64%
×8story building
+106ft-24ft

Overall

16228

Males

9750

M50-54

9750

21M→35K

21.0 - 21.8 mi

Top 58%
×7story building
+17ft-86ft

Overall

14727

Males

8977

M50-54

8977

35K→23M

21.8 - 23.0 mi

Top 51%
×5story building
+23ft-63ft

Overall

12986

Males

8054

M50-54

8054

23M→24M

23.0 - 24.0 mi

Top 47%
×6story building
+12ft-82ft

Overall

12055

Males

7586

M50-54

7586

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

14332

Males

8607

M50-54

8607

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

14192

Males

8504

M50-54

8504

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

13751

Males

8359

M50-54

8359

Passing Analysis

Category:
Athletes Passed
1446*
Passed By
3486
Net Change
-2042
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8819
5K → 10K121487-366#8819#9185
10K → 15K153243-90#9185#9275
15K → 20K242175+67#9275#9208
20K → Half3441-7#9208#9215
Half → 25K218181+37#9215#9178
25K → 30K225369-144#9178#9322
30K → 20M73346-273#9322#9595
20M → 21M25551-528#9595#10123
21M → 35K42231-189#10123#10312
35K → 23M104217-113#10312#10425
23M → 24M80144-64#10425#10489
24M → 40K60*247-187#10489#10676
40K → 25.2M1986-67#10676#10743
25.2M → Finish50168-118#10743#10861
TOTALS1446*3486-2042

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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