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BOSTON MARATHON 2025

Daijiong Lu

Bib: 7266•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 27%
Gender (Male)
#0 / 16105
Top 40%
Masters (Masters Men)
#0 / 10463
Top 27%
Division (M50-54)
#0 / 1996
Top 24%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:46
Rank: #10617
Start → 5K
22:46 | 7:20/mi
10K· 6.21 mi
45:27
Rank: #10448 (+169)
5K → 10K
22:41 | 7:18/mi
15K· 9.32 mi
1:07:43
Rank: #9898 (+550)
10K → 15K
22:16 | 7:10/mi
20K· 12.43 mi
1:30:21
Rank: #9595 (+303)
15K → 20K
22:38 | 7:17/mi
Half· 13.11 mi
1:35:15
Rank: #9549 (+46)
20K → Half
4:54 | 7:11/mi
25K· 15.53 mi
1:52:44
Rank: #9192 (+357)
Half → 25K
17:29 | 7:13/mi
30K· 18.64 mi
2:15:50
Rank: #8720 (+472)
25K → 30K
23:06 | 7:26/mi
20M
2:26:06
Rank: #8560 (+160)
30K → 20M
10:16 | 7:33/mi
21M
2:34:07
Rank: #8452 (+108)
20M → 21M
8:01 | 8:01/mi
35K· 21.75 mi
2:39:38
Rank: #8393 (+59)
21M → 35K
5:31 | 7:22/mi
23M
2:48:58
Rank: #8197 (+196)
35K → 23M
9:20 | 7:27/mi
24M
2:55:57
Rank: #7960 (+237)
23M → 24M
6:59 | 6:59/mi
40K· 24.85 mi
3:02:04
Rank: #7773 (+187)
24M → 40K
6:07 | 7:09/mi
25.2M
3:04:58
Rank: #7761 (+12)
40K → 25.2M
2:54 | 8:25/mi
Finish· 26.22 mi
3:12:37
Rank: #7779 (-18)
25.2M → Finish
7:39 | 7:30/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:15
Pace7:16 /mi
2nd Half
Distance13.11 mi
Time1:37:22
Pace7:26 /mi
📊Positive Split: 2.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:28:4022:467:2022:46
7:20
-
10K
6.21 mi10:51:2145:277:1922:41
7:18
-0:02
15K
9.32 mi11:13:371:07:437:1622:16
7:10
-0:08
20K
12.43 mi11:36:151:30:217:1622:38
7:17
+0:07
Half
13.11 mi11:41:091:35:157:164:54
7:11
-0:06
25K
15.53 mi11:58:381:52:447:1517:29
7:13
+0:02
30K
18.64 mi12:21:442:15:507:1723:06
7:26
+0:13
20M
20.00 mi12:32:002:26:067:1810:16
7:33
+0:07
21M
21.00 mi12:40:012:34:077:208:01
8:01
+0:28
35K
21.75 mi12:45:322:39:387:205:31
7:22
-0:39
23M
23.00 mi12:54:522:48:587:219:20
7:27
+0:05
24M
24.00 mi13:01:512:55:577:206:59
6:59
-0:28
40K
24.85 mi13:07:583:02:047:206:07
7:09
+0:10
25.2M
25.20 mi13:10:523:04:587:202:54
8:25
+1:16
Finish
26.22 mi13:18:313:12:377:217:39
7:30
-0:55

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

6:59 /mi

Average Pace

7:21 /mi

Slowest Pace

8:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

13:06

7% of race

Time at Steady Pace

2:38:20

82% of race

Time at Slower Pace

21:11

11% of race

Average Pace: 7:21 /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 mi10:28:4022:467:2022:46
7:20
#10617
10K
6.21 mi10:51:2145:277:1922:41
7:18
#10448
15K
9.32 mi11:13:371:07:437:1622:16
7:10
#9898
20K
12.43 mi11:36:151:30:217:1622:38
7:17
#9595
Half
13.11 mi11:41:091:35:157:164:54
7:11
#9549
25K
15.53 mi11:58:381:52:447:1517:29
7:13
#9192
30K
18.64 mi12:21:442:15:507:1723:06
7:26
#8720
20M
20.00 mi12:32:002:26:067:1810:16
7:33
#8560
21M
21.00 mi12:40:012:34:077:208:01
8:01
#8452
35K
21.75 mi12:45:322:39:387:205:31
7:22
#8393
23M
23.00 mi12:54:522:48:587:219:20
7:27
#8197
24M
24.00 mi13:01:512:55:577:206:59
6:59
#7960
40K
24.85 mi13:07:583:02:047:206:07
7:09
#7773
25.2M
25.20 mi13:10:523:04:587:202:54
8:25
#7761
Finish
26.22 mi13:18:313:12:377:217:39
7:30
#7779
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi10617848984898819(Top 31%)7444(Top 46%)7444(Top 373%)
10K6.21 mi3.10 mi10448+1698392+978392+9710339(Top 36%)8330(Top 52%)8330(Top 417%)
15K9.32 mi3.11 mi9898+5508076+3168076+3168819(Top 31%)7444(Top 46%)7444(Top 373%)
20K12.43 mi3.11 mi9595+3037881+1957881+1958911(Top 31%)7393(Top 46%)7393(Top 370%)
Half13.11 mi0.68 mi9549+467851+307851+308870(Top 31%)7392(Top 46%)7392(Top 370%)
25K15.53 mi2.42 mi9192+3577627+2247627+2247687(Top 27%)6568(Top 41%)6568(Top 329%)
30K18.64 mi3.11 mi8720+4727317+3107317+3107268(Top 26%)6133(Top 38%)6133(Top 307%)
20M20.00 mi1.36 mi8560+1607180+1377180+1377389(Top 26%)6071(Top 38%)6071(Top 304%)
21M21.00 mi1.00 mi8452+1087082+987082+987421(Top 26%)5924(Top 37%)5924(Top 297%)
35K21.75 mi0.75 mi8393+597024+587024+587692(Top 27%)6109(Top 38%)6109(Top 306%)
23M23.00 mi1.25 mi8197+1966868+1566868+1566374(Top 22%)5205(Top 32%)5205(Top 261%)
24M24.00 mi1.00 mi7960+2376676+1926676+1924565(Top 16%)3958(Top 25%)3958(Top 198%)
40K24.85 mi0.85 mi7773+1876526+1506526+1504807(Top 17%)4085(Top 25%)4085(Top 205%)
25.2M25.20 mi0.35 mi7761+126506+206506+208189(Top 29%)6013(Top 37%)6013(Top 301%)
Finish26.22 mi1.02 mi7779-186489+176489+179204(Top 32%)6549(Top 41%)6549(Top 328%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21stories
+97ft-345ft

Overall

8819

Males

7444

M50-54

7444

5K→10K

3.1 - 6.2 mi

Top 36%
×5stories
+79ft-138ft

Overall

10339

Males

8330

M50-54

8330

10K→15K

6.2 - 9.3 mi

Top 31%
×3stories
+67ft-78ft

Overall

8819

Males

7444

M50-54

7444

15K→20K

9.3 - 12.4 mi

Top 31%
×5stories
+106ft-86ft

Overall

8911

Males

7393

M50-54

7393

20K→Half

12.4 - 13.1 mi

Top 31%
×2stories
+19ft-37ft

Overall

8870

Males

7392

M50-54

7392

Half→25K

13.1 - 15.5 mi

Top 27%
×4stories
+66ft-88ft

Overall

7687

Males

6568

M50-54

6568

25K→30K

15.5 - 18.6 mi

Top 26%
×9stories
+181ft-148ft

Overall

7268

Males

6133

M50-54

6133

30K→20M

18.6 - 20.0 mi

Top 26%
×5stories
+64ft-50ft

Overall

7389

Males

6071

M50-54

6071

20M→21M

20.0 - 21.0 mi

Top 26%
×8stories
+106ft-24ft

Overall

7421

Males

5924

M50-54

5924

21M→35K

21.0 - 21.8 mi

Top 27%
×7stories
+17ft-86ft

Overall

7692

Males

6109

M50-54

6109

35K→23M

21.8 - 23.0 mi

Top 22%
×5stories
+23ft-63ft

Overall

6374

Males

5205

M50-54

5205

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4565

Males

3958

M50-54

3958

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4807

Males

4085

M50-54

4085

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

8189

Males

6013

M50-54

6013

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2stories
+22ft-21ft

Overall

9204

Males

6549

M50-54

6549

Passing Analysis

Category:
Athletes Passed
3357*
Passed By
519
Net Change
+2838
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10617
5K → 10K346177+169#10617#10448
10K → 15K566*16+550#10448#9898
15K → 20K34744+303#9898#9595
20K → Half5711+46#9595#9549
Half → 25K37215+357#9549#9192
25K → 30K50735+472#9192#8720
30K → 20M18323+160#8720#8560
20M → 21M15143+108#8560#8452
21M → 35K8627+59#8452#8393
35K → 23M21519+196#8393#8197
23M → 24M2381+237#8197#7960
24M → 40K1903+187#7960#7773
40K → 25.2M3826+12#7773#7761
25.2M → Finish6179-18#7761#7779
TOTALS3357*519+2838

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

📊

Passing Visuals

Category:
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🔥Passing Intensity

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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