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BOSTON MARATHON 2025

Jing Jiang

Bib: 12537•M

CT

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 45%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 48%
Division (M45-49)
#0 / 2386
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
7:29/mi
23:16
↑ 97↓ 3451.5%
10K· 6.21 mi
7:15/mi
45:48
↑ 79↓ 1380.4%
15K· 9.32 mi
7:11/mi
1:08:08
↑ 67↓ 78
20K· 12.43 mi
7:23/mi
1:31:04
↑ 106↓ 860.1%
Half· 13.11 mi
7:21/mi
1:36:05
↑ 19↓ 370.5%
25K· 15.53 mi
7:36/mi
1:54:31
↑ 66↓ 880.2%
30K· 18.64 mi
8:19/mi
2:20:20
↑ 181↓ 1480.2%
20M
8:53/mi
2:32:24
↑ 64↓ 500.2%
21M
9:41/mi
2:42:05
↑ 106↓ 241.6%
35K· 21.75 mi
8:52/mi
2:48:43
↑ 17↓ 861.7%
23M
8:50/mi
2:59:47
↑ 23↓ 630.6%
24M
9:09/mi
3:08:56
↓ 821.3%
40K· 24.85 mi
9:24/mi
3:16:58
↓ 200.3%
25.2M
10:03/mi
3:20:26
↑ 13↓ 160.2%
Finish· 26.22 mi
8:23/mi
3:28:59
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:05
Pace7:20 /mi
2nd Half
Distance13.11 mi
Time1:52:54
Pace8:37 /mi
📊Positive Split: 17.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:2423:167:2923:16
7:29
-
10K
6.21 mi11:13:5645:487:2222:32
7:15
-0:14
15K
9.32 mi11:36:161:08:087:1922:20
7:11
-0:04
20K
12.43 mi11:59:121:31:047:2022:56
7:23
+0:12
Half
13.11 mi12:04:131:36:057:205:01
7:21
-0:02
25K
15.53 mi12:22:391:54:317:2218:26
7:36
+0:15
30K
18.64 mi12:48:282:20:207:3225:49
8:19
+0:43
20M
20.00 mi13:00:322:32:247:3712:04
8:53
+0:34
21M
21.00 mi13:10:132:42:057:439:41
9:41
+0:48
35K
21.75 mi13:16:512:48:437:456:38
8:52
-0:49
23M
23.00 mi13:27:552:59:477:4911:04
8:50
-0:02
24M
24.00 mi13:37:043:08:567:529:09
9:09
+0:19
40K
24.85 mi13:45:063:16:587:558:02
9:24
+0:15
25.2M
25.20 mi13:48:343:20:267:573:28
10:03
+0:39
Finish
26.22 mi13:57:073:28:597:598:33
8:23
-1:40

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

7:11 /mi

Average Pace

7:59 /mi

Slowest Pace

10:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:54:31

55% of race

Time at Steady Pace

45:26

22% of race

Time at Slower Pace

49:02

23% of race

Average Pace: 7:58 /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 mi10:51:2423:167:2923:16
7:29
#12128
10K
6.21 mi11:13:5645:487:2222:32
7:15
#10962
15K
9.32 mi11:36:161:08:087:1922:20
7:11
#10293
20K
12.43 mi11:59:121:31:047:2022:56
7:23
#10108
Half
13.11 mi12:04:131:36:057:205:01
7:21
#10129
25K
15.53 mi12:22:391:54:317:2218:26
7:36
#10204
30K
18.64 mi12:48:282:20:207:3225:49
8:19
#10845
20M
20.00 mi13:00:322:32:247:3712:04
8:53
#11254
21M
21.00 mi13:10:132:42:057:439:41
9:41
#11634
35K
21.75 mi13:16:512:48:437:456:38
8:52
#11867
23M
23.00 mi13:27:552:59:477:4911:04
8:50
#12093
24M
24.00 mi13:37:043:08:567:529:09
9:09
#12421
40K
24.85 mi13:45:063:16:587:558:02
9:24
#12688
25.2M
25.20 mi13:48:343:20:267:573:28
10:03
#12786
Finish
26.22 mi13:57:073:28:597:598:33
8:23
#12897
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi12128923292329019(Top 32%)7563(Top 47%)7563(Top 317%)
10K6.21 mi3.10 mi10962+11668649+5838649+5839944(Top 35%)8111(Top 50%)8111(Top 340%)
15K9.32 mi3.11 mi10293+6698298+3518298+3519019(Top 32%)7563(Top 47%)7563(Top 317%)
20K12.43 mi3.11 mi10108+1858165+1338165+1339730(Top 34%)7869(Top 49%)7869(Top 330%)
Half13.11 mi0.68 mi10129-218174-98174-910476(Top 37%)8289(Top 51%)8289(Top 347%)
25K15.53 mi2.42 mi10204-758173+18173+110784(Top 38%)8283(Top 51%)8283(Top 347%)
30K18.64 mi3.11 mi10845-6418433-2608433-26013558(Top 48%)9396(Top 58%)9396(Top 394%)
20M20.00 mi1.36 mi11254-4098587-1548587-15416083(Top 57%)10395(Top 65%)10395(Top 436%)
21M21.00 mi1.00 mi11634-3808724-1378724-13716924(Top 60%)10653(Top 66%)10653(Top 446%)
35K21.75 mi0.75 mi11867-2338814-908814-9017559(Top 62%)10837(Top 67%)10837(Top 454%)
23M23.00 mi1.25 mi12093-2268885-718885-7115300(Top 54%)9762(Top 61%)9762(Top 409%)
24M24.00 mi1.00 mi12421-3289005-1209005-12018084(Top 64%)10952(Top 68%)10952(Top 459%)
40K24.85 mi0.85 mi12688-2679102-979102-9718233(Top 64%)10939(Top 68%)10939(Top 458%)
25.2M25.20 mi0.35 mi12786-989131-299131-2917197(Top 61%)10438(Top 65%)10438(Top 437%)
Finish26.22 mi1.02 mi12897-1119156-259156-2515476(Top 54%)9691(Top 60%)9691(Top 406%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21story building
+97ft-345ft

Overall

9019

Males

7563

M45-49

7563

5K→10K

3.1 - 6.2 mi

Top 35%
×5story building
+79ft-138ft

Overall

9944

Males

8111

M45-49

8111

10K→15K

6.2 - 9.3 mi

Top 32%
×3story building
+67ft-78ft

Overall

9019

Males

7563

M45-49

7563

15K→20K

9.3 - 12.4 mi

Top 34%
×5story building
+106ft-86ft

Overall

9730

Males

7869

M45-49

7869

20K→Half

12.4 - 13.1 mi

Top 37%
×2story building
+19ft-37ft

Overall

10476

Males

8289

M45-49

8289

Half→25K

13.1 - 15.5 mi

Top 38%
×4story building
+66ft-88ft

Overall

10784

Males

8283

M45-49

8283

25K→30K

15.5 - 18.6 mi

Top 48%
×9story building
+181ft-148ft

Overall

13558

Males

9396

M45-49

9396

30K→20M

18.6 - 20.0 mi

Top 57%
×5story building
+64ft-50ft

Overall

16083

Males

10395

M45-49

10395

20M→21M

20.0 - 21.0 mi

Top 60%
×8story building
+106ft-24ft

Overall

16924

Males

10653

M45-49

10653

21M→35K

21.0 - 21.8 mi

Top 62%
×7story building
+17ft-86ft

Overall

17559

Males

10837

M45-49

10837

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

15300

Males

9762

M45-49

9762

23M→24M

23.0 - 24.0 mi

Top 64%
×6story building
+12ft-82ft

Overall

18084

Males

10952

M45-49

10952

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

18233

Males

10939

M45-49

10939

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

17197

Males

10438

M45-49

10438

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

15476

Males

9691

M45-49

9691

Passing Analysis

Category:
Athletes Passed
2636
Passed By
3403
Net Change
-769
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12128
5K → 10K118923+1166#12128#10962
10K → 15K6778+669#10962#10293
15K → 20K27084+185#10293#10108
20K → Half2142-21#10108#10129
Half → 25K139214-75#10129#10204
25K → 30K94734-641#10204#10845
30K → 20M45454-409#10845#11254
20M → 21M28408-380#11254#11634
21M → 35K14247-233#11634#11867
35K → 23M61287-226#11867#12093
23M → 24M18346-328#12093#12421
24M → 40K31298-267#12421#12688
40K → 25.2M10108-98#12688#12786
25.2M → Finish39150-111#12786#12897
TOTALS26363403-769
📊

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