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BOSTON MARATHON 2025

Jidong Ding

Bib: 28961•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M50-54)
#0 / 1996
Race Day Weather
50°/40°F
broken 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
9:21/mi
29:03
↑ 97↓ 3451.5%
10K· 6.21 mi
9:16/mi
57:49
↑ 79↓ 1380.4%
15K· 9.32 mi
9:14/mi
1:26:30
↑ 67↓ 78
20K· 12.43 mi
9:37/mi
1:56:23
↑ 106↓ 860.1%
Half· 13.11 mi
9:11/mi
2:02:39
↑ 19↓ 370.5%
25K· 15.53 mi
9:48/mi
2:26:24
↑ 66↓ 880.2%
30K· 18.64 mi
11:24/mi
3:01:50
↑ 181↓ 1480.2%
20M
11:18/mi
3:17:11
↑ 64↓ 500.2%
21M
12:56/mi
3:30:07
↑ 106↓ 241.6%
35K· 21.75 mi
11:11/mi
3:38:29
↑ 17↓ 861.7%
23M
11:19/mi
3:52:39
↑ 23↓ 630.6%
24M
10:47/mi
4:03:26
↓ 821.3%
40K· 24.85 mi
9:37/mi
4:11:39
↓ 200.3%
25.2M
11:36/mi
4:15:39
↑ 13↓ 160.2%
Finish· 26.22 mi
9:40/mi
4:25:30
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:39
Pace9:21 /mi
2nd Half
Distance13.11 mi
Time2:22:51
Pace10:54 /mi
📊Positive Split: 16.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:1729:039:2129:03
9:21
-
10K
6.21 mi12:17:0357:499:1828:46
9:16
-0:05
15K
9.32 mi12:45:441:26:309:1728:41
9:14
-0:02
20K
12.43 mi13:15:371:56:239:2229:53
9:37
+0:23
Half
13.11 mi13:21:532:02:399:216:16
9:11
-0:26
25K
15.53 mi13:45:382:26:249:2523:45
9:48
+0:37
30K
18.64 mi14:21:043:01:509:4535:26
11:24
+1:36
20M
20.00 mi14:36:253:17:119:5215:21
11:18
-0:06
21M
21.00 mi14:49:213:30:0710:0012:56
12:56
+1:38
35K
21.75 mi14:57:433:38:2910:038:22
11:11
-1:45
23M
23.00 mi15:11:533:52:3910:0714:10
11:19
+0:08
24M
24.00 mi15:22:404:03:2610:0910:47
10:47
-0:32
40K
24.85 mi15:30:534:11:3910:078:13
9:37
-1:10
25.2M
25.20 mi15:34:534:15:3910:094:00
11:36
+1:59
Finish
26.22 mi15:44:444:25:3010:089:51
9:40
-1:56

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

9:11 /mi

Average Pace

10:08 /mi

Slowest Pace

12:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

34:57

13% of race

Time at Steady Pace

2:09:31

49% of race

Time at Slower Pace

1:41:02

38% of race

Average Pace: 10:08 /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 mi11:48:1729:039:2129:03
9:21
#23733
10K
6.21 mi12:17:0357:499:1828:46
9:16
#23581
15K
9.32 mi12:45:441:26:309:1728:41
9:14
#23372
20K
12.43 mi13:15:371:56:239:2229:53
9:37
#23336
Half
13.11 mi13:21:532:02:399:216:16
9:11
#23295
25K
15.53 mi13:45:382:26:249:2523:45
9:48
#23188
30K
18.64 mi14:21:043:01:509:4535:26
11:24
#23542
20M
20.00 mi14:36:253:17:119:5215:21
11:18
#23611
21M
21.00 mi14:49:213:30:0710:0012:56
12:56
#23749
35K
21.75 mi14:57:433:38:2910:038:22
11:11
#23778
23M
23.00 mi15:11:533:52:3910:0714:10
11:19
#23792
24M
24.00 mi15:22:404:03:2610:0910:47
10:47
#23779
40K
24.85 mi15:30:534:11:3910:078:13
9:37
#23648
25.2M
25.20 mi15:34:534:15:3910:094:00
11:36
#23627
Finish
26.22 mi15:44:444:25:3010:089:51
9:40
#23548
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi23733141231412322967(Top 81%)13822(Top 86%)13822(Top 692%)
10K6.21 mi3.10 mi23581+15214045+7814045+7823385(Top 82%)13977(Top 87%)13977(Top 700%)
15K9.32 mi3.11 mi23372+20913975+7013975+7022967(Top 81%)13822(Top 86%)13822(Top 692%)
20K12.43 mi3.11 mi23336+3613970+513970+523264(Top 82%)13920(Top 86%)13920(Top 697%)
Half13.11 mi0.68 mi23295+4113951+1913951+1922529(Top 79%)13575(Top 84%)13575(Top 680%)
25K15.53 mi2.42 mi23188+10713891+6013891+6022753(Top 80%)13633(Top 85%)13633(Top 683%)
30K18.64 mi3.11 mi23542-35414001-11014001-11024705(Top 87%)14401(Top 89%)14401(Top 721%)
20M20.00 mi1.36 mi23611-6914005-414005-424177(Top 85%)14062(Top 87%)14062(Top 705%)
21M21.00 mi1.00 mi23749-13814056-5114056-5124962(Top 88%)14347(Top 89%)14347(Top 719%)
35K21.75 mi0.75 mi23778-2914060-414060-424574(Top 87%)14141(Top 88%)14141(Top 708%)
23M23.00 mi1.25 mi23792-1414042+1814042+1823908(Top 84%)13794(Top 86%)13794(Top 691%)
24M24.00 mi1.00 mi23779+1314025+1714025+1723529(Top 83%)13582(Top 84%)13582(Top 680%)
40K24.85 mi0.85 mi23648+13113946+7913946+7919128(Top 67%)11389(Top 71%)11389(Top 571%)
25.2M25.20 mi0.35 mi23627+2113927+1913927+1922294(Top 78%)12944(Top 80%)12944(Top 648%)
Finish26.22 mi1.02 mi23548+7913874+5313874+5321789(Top 77%)12682(Top 79%)12682(Top 635%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21story building
+97ft-345ft

Overall

22967

Males

13822

M50-54

13822

5K→10K

3.1 - 6.2 mi

Top 82%
×5story building
+79ft-138ft

Overall

23385

Males

13977

M50-54

13977

10K→15K

6.2 - 9.3 mi

Top 81%
×3story building
+67ft-78ft

Overall

22967

Males

13822

M50-54

13822

15K→20K

9.3 - 12.4 mi

Top 82%
×5story building
+106ft-86ft

Overall

23264

Males

13920

M50-54

13920

20K→Half

12.4 - 13.1 mi

Top 79%
×2story building
+19ft-37ft

Overall

22529

Males

13575

M50-54

13575

Half→25K

13.1 - 15.5 mi

Top 80%
×4story building
+66ft-88ft

Overall

22753

Males

13633

M50-54

13633

25K→30K

15.5 - 18.6 mi

Top 87%
×9story building
+181ft-148ft

Overall

24705

Males

14401

M50-54

14401

30K→20M

18.6 - 20.0 mi

Top 85%
×5story building
+64ft-50ft

Overall

24177

Males

14062

M50-54

14062

20M→21M

20.0 - 21.0 mi

Top 88%
×8story building
+106ft-24ft

Overall

24962

Males

14347

M50-54

14347

21M→35K

21.0 - 21.8 mi

Top 87%
×7story building
+17ft-86ft

Overall

24574

Males

14141

M50-54

14141

35K→23M

21.8 - 23.0 mi

Top 84%
×5story building
+23ft-63ft

Overall

23908

Males

13794

M50-54

13794

23M→24M

23.0 - 24.0 mi

Top 83%
×6story building
+12ft-82ft

Overall

23529

Males

13582

M50-54

13582

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

19128

Males

11389

M50-54

11389

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

22294

Males

12944

M50-54

12944

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

21789

Males

12682

M50-54

12682

Passing Analysis

Category:
Athletes Passed
1554
Passed By
1369
Net Change
+185
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23733
5K → 10K320168+152#23733#23581
10K → 15K28879+209#23581#23372
15K → 20K169133+36#23372#23336
20K → Half5514+41#23336#23295
Half → 25K17770+107#23295#23188
25K → 30K65419-354#23188#23542
30K → 20M55124-69#23542#23611
20M → 21M34172-138#23611#23749
21M → 35K2857-29#23749#23778
35K → 23M6377-14#23778#23792
23M → 24M4633+13#23792#23779
24M → 40K1321+131#23779#23648
40K → 25.2M309+21#23648#23627
25.2M → Finish9213+79#23627#23548
TOTALS15541369+185
📊

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