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BOSTON MARATHON 2024

Dingshan Xiao

Bib: 18253•M

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 40%
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Top 42%
Division (M55-59)
#0 / 1529
Top 29%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:09
Rank: #15334
Start → 5K
8:06/mi
25:09 split
10K· 6.21 mi
50:26
Rank: #15210 (+124)
5K → 10K
8:08/mi
25:17 split
15K· 9.32 mi
1:16:37
Rank: #15469 (-259)
10K → 15K
8:26/mi
26:11 split
20K· 12.43 mi
1:41:55
Rank: #14726 (+743)
15K → 20K
8:09/mi
25:18 split
Half· 13.11 mi
1:47:14
Rank: #14542 (+184)
20K → Half
7:48/mi
5:19 split
25K· 15.53 mi
2:06:18
Rank: #13621 (+921)
Half → 25K
7:52/mi
19:04 split
30K· 18.64 mi
2:31:23
Rank: #12469 (+1152)
25K → 30K
8:04/mi
25:05 split
20M
2:42:19
Rank: #12010 (+459)
30K → 20M
8:03/mi
10:56 split
21M
2:50:59
Rank: #11606 (+404)
20M → 21M
8:40/mi
8:40 split
35K· 21.75 mi
2:56:44
Rank: #11346 (+260)
21M → 35K
7:41/mi
5:45 split
23M
3:06:41
Rank: #10912 (+434)
35K → 23M
7:57/mi
9:57 split
24M
3:14:33
Rank: #10619 (+293)
23M → 24M
7:52/mi
7:52 split
40K· 24.85 mi
3:21:30
Rank: #10401 (+218)
24M → 40K
8:08/mi
6:57 split
25.2M
3:24:36
Rank: #10314 (+87)
40K → 25.2M
8:59/mi
3:06 split
Finish· 26.22 mi
3:32:51
Rank: #10244 (+70)
25.2M → Finish
8:06/mi
8:15 split

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:47:14
Pace8:11 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:45:37
Pace8:03 /mi
📊Negative Split: 1.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:2625:098:0625:09
8:06
-
10K
6.21 mi11:42:4350:268:0725:17
8:08
+0:02
15K
9.32 mi12:08:541:16:378:1326:11
8:26
+0:18
20K
12.43 mi12:34:121:41:558:1225:18
8:09
-0:17
Half
13.11 mi12:39:311:47:148:115:19
7:48
-0:21
25K
15.53 mi12:58:352:06:188:0819:04
7:52
+0:04
30K
18.64 mi13:23:402:31:238:0725:05
8:04
+0:12
20M
20.00 mi13:34:362:42:198:0710:56
8:03
-0:01
21M
21.00 mi13:43:162:50:598:098:40
8:40
+0:37
35K
21.75 mi13:49:012:56:448:085:45
7:41
-0:59
23M
23.00 mi13:58:583:06:418:079:57
7:57
+0:16
24M
24.00 mi14:06:503:14:338:067:52
7:52
-0:05
40K
24.85 mi14:13:473:21:308:066:57
8:08
+0:16
25.2M
25.20 mi14:16:533:24:368:073:06
8:59
+0:51
Finish
26.22 mi14:25:083:32:518:078:15
8:06
-0:53

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

7:41 /mi

Average Pace

8:07 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:21:05

94% of race

Time at Steady Pace

11:46

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:07 /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 mi11:17:2625:098:0625:09
8:06
#15334
10K
6.21 mi11:42:4350:268:0725:17
8:08
#15210
15K
9.32 mi12:08:541:16:378:1326:11
8:26
#15469
20K
12.43 mi12:34:121:41:558:1225:18
8:09
#14726
Half
13.11 mi12:39:311:47:148:115:19
7:48
#14542
25K
15.53 mi12:58:352:06:188:0819:04
7:52
#13621
30K
18.64 mi13:23:402:31:238:0725:05
8:04
#12469
20M
20.00 mi13:34:362:42:198:0710:56
8:03
#12010
21M
21.00 mi13:43:162:50:598:098:40
8:40
#11606
35K
21.75 mi13:49:012:56:448:085:45
7:41
#11346
23M
23.00 mi13:58:583:06:418:079:57
7:57
#10912
24M
24.00 mi14:06:503:14:338:067:52
7:52
#10619
40K
24.85 mi14:13:473:21:308:066:57
8:08
#10401
25.2M
25.20 mi14:16:533:24:368:073:06
8:59
#10314
Finish
26.22 mi14:25:083:32:518:078:15
8:06
#10244
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi15334101441014415977(Top 63%)10393(Top 71%)10393(Top 680%)
10K6.21 mi3.10 mi15210+12410108+3610108+3615132(Top 59%)10084(Top 69%)10084(Top 660%)
15K9.32 mi3.11 mi15469-25910203-9510203-9515977(Top 63%)10393(Top 71%)10393(Top 680%)
20K12.43 mi3.11 mi14726+7439898+3059898+30512791(Top 50%)9029(Top 62%)9029(Top 591%)
Half13.11 mi0.68 mi14542+1849812+869812+8611209(Top 44%)8256(Top 57%)8256(Top 540%)
25K15.53 mi2.42 mi13621+9219424+3889424+3889326(Top 37%)7147(Top 49%)7147(Top 467%)
30K18.64 mi3.11 mi12469+11528830+5948830+5948299(Top 32%)6389(Top 44%)6389(Top 418%)
20M20.00 mi1.36 mi12010+4598573+2578573+2577039(Top 28%)5469(Top 38%)5469(Top 358%)
21M21.00 mi1.00 mi11606+4048327+2468327+2466989(Top 27%)5267(Top 36%)5267(Top 344%)
35K21.75 mi0.75 mi11346+2608178+1498178+1496024(Top 24%)4706(Top 32%)4706(Top 308%)
23M23.00 mi1.25 mi10912+4347900+2787900+2785489(Top 21%)4263(Top 29%)4263(Top 279%)
24M24.00 mi1.00 mi10619+2937711+1897711+1895919(Top 23%)4423(Top 30%)4423(Top 289%)
40K24.85 mi0.85 mi10401+2187558+1537558+1536425(Top 25%)4571(Top 31%)4571(Top 299%)
25.2M25.20 mi0.35 mi10314+877497+617497+616518(Top 26%)4573(Top 31%)4573(Top 299%)
Finish26.22 mi1.02 mi10244+707427+707427+709126(Top 36%)5993(Top 41%)5993(Top 392%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21story building
+97ft-345ft

Overall

15977

Males

10393

M55-59

10393

5K→10K

3.1 - 6.2 mi

Top 59%
×5story building
+79ft-138ft

Overall

15132

Males

10084

M55-59

10084

10K→15K

6.2 - 9.3 mi

Top 63%
×3story building
+67ft-78ft

Overall

15977

Males

10393

M55-59

10393

15K→20K

9.3 - 12.4 mi

Top 50%
×5story building
+106ft-86ft

Overall

12791

Males

9029

M55-59

9029

20K→Half

12.4 - 13.1 mi

Top 44%
×2story building
+19ft-37ft

Overall

11209

Males

8256

M55-59

8256

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

9326

Males

7147

M55-59

7147

25K→30K

15.5 - 18.6 mi

Top 32%
×9story building
+181ft-148ft

Overall

8299

Males

6389

M55-59

6389

30K→20M

18.6 - 20.0 mi

Top 28%
×5story building
+64ft-50ft

Overall

7039

Males

5469

M55-59

5469

20M→21M

20.0 - 21.0 mi

Top 27%
×8story building
+106ft-24ft

Overall

6989

Males

5267

M55-59

5267

21M→35K

21.0 - 21.8 mi

Top 24%
×7story building
+17ft-86ft

Overall

6024

Males

4706

M55-59

4706

35K→23M

21.8 - 23.0 mi

Top 21%
×5story building
+23ft-63ft

Overall

5489

Males

4263

M55-59

4263

23M→24M

23.0 - 24.0 mi

Top 23%
×6story building
+12ft-82ft

Overall

5919

Males

4423

M55-59

4423

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6425

Males

4571

M55-59

4571

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

6518

Males

4573

M55-59

4573

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2story building
+22ft-21ft

Overall

9126

Males

5993

M55-59

5993

Passing Analysis

Category:
Athletes Passed
5798*
Passed By
708
Net Change
+5090
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15334
5K → 10K332208+124#15334#15210
10K → 15K167426-259#15210#15469
15K → 20K7529+743#15469#14726
20K → Half1862+184#14726#14542
Half → 25K9221+921#14542#13621
25K → 30K11520+1152#13621#12469
30K → 20M4612+459#12469#12010
20M → 21M4106+404#12010#11606
21M → 35K2611+260#11606#11346
35K → 23M4351+434#11346#10912
23M → 24M2952+293#10912#10619
24M → 40K224*6+218#10619#10401
40K → 25.2M903+87#10401#10314
25.2M → Finish11141+70#10314#10244
TOTALS5798*708+5090

* 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