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BOSTON MARATHON 2025

Qiang Song

Bib: 7807•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 26%
Gender (Male)
#0 / 16105
Top 38%
Masters (Masters Men)
#0 / 10463
Top 25%
Division (M50-54)
#0 / 1996
Top 22%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:02
Rank: #6087
Start → 5K
21:02 | 6:46/mi
10K· 6.21 mi
42:18
Rank: #6368 (-281)
5K → 10K
21:16 | 6:51/mi
15K· 9.32 mi
1:03:44
Rank: #6540 (-172)
10K → 15K
21:26 | 6:54/mi
20K· 12.43 mi
1:25:35
Rank: #6730 (-190)
15K → 20K
21:51 | 7:02/mi
Half· 13.11 mi
1:30:21
Rank: #6763 (-33)
20K → Half
4:46 | 6:59/mi
25K· 15.53 mi
1:47:53
Rank: #6886 (-123)
Half → 25K
17:32 | 7:14/mi
30K· 18.64 mi
2:11:34
Rank: #7052 (-166)
25K → 30K
23:41 | 7:37/mi
20M
2:22:12
Rank: #7132 (-80)
30K → 20M
10:38 | 7:49/mi
21M
2:30:51
Rank: #7284 (-152)
20M → 21M
8:39 | 8:39/mi
35K· 21.75 mi
2:36:22
Rank: #7250 (+34)
21M → 35K
5:31 | 7:22/mi
23M
2:46:17
Rank: #7317 (-67)
35K → 23M
9:55 | 7:55/mi
24M
2:53:57
Rank: #7339 (-22)
23M → 24M
7:40 | 7:40/mi
40K· 24.85 mi
3:00:31
Rank: #7311 (+28)
24M → 40K
6:34 | 7:41/mi
25.2M
3:03:28
Rank: #7313 (-2)
40K → 25.2M
2:57 | 8:33/mi
Finish· 26.22 mi
3:10:51
Rank: #7290 (+23)
25.2M → Finish
7:23 | 7:15/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:21
Pace6:54 /mi
2nd Half
Distance13.11 mi
Time1:40:30
Pace7:40 /mi
📊Positive Split: 11.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:28:3821:026:4621:02
6:46
-
10K
6.21 mi10:49:5442:186:4821:16
6:51
+0:05
15K
9.32 mi11:11:201:03:446:5021:26
6:54
+0:03
20K
12.43 mi11:33:111:25:356:5321:51
7:02
+0:08
Half
13.11 mi11:37:571:30:216:544:46
6:59
-0:03
25K
15.53 mi11:55:291:47:536:5717:32
7:14
+0:15
30K
18.64 mi12:19:102:11:347:0323:41
7:37
+0:23
20M
20.00 mi12:29:482:22:127:0710:38
7:49
+0:12
21M
21.00 mi12:38:272:30:517:118:39
8:39
+0:50
35K
21.75 mi12:43:582:36:227:115:31
7:22
-1:17
23M
23.00 mi12:53:532:46:177:149:55
7:55
+0:33
24M
24.00 mi13:01:332:53:577:157:40
7:40
-0:15
40K
24.85 mi13:08:073:00:317:166:34
7:41
+0:01
25.2M
25.20 mi13:11:043:03:287:172:57
8:33
+0:52
Finish
26.22 mi13:18:273:10:517:177:23
7:15
-1:18

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

6:46 /mi

Average Pace

7:17 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:30:21

47% of race

Time at Steady Pace

54:07

28% of race

Time at Slower Pace

46:23

24% of race

Average Pace: 7:17 /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 mi10:28:3821:026:4621:02
6:46
#6087
10K
6.21 mi10:49:5442:186:4821:16
6:51
#6368
15K
9.32 mi11:11:201:03:446:5021:26
6:54
#6540
20K
12.43 mi11:33:111:25:356:5321:51
7:02
#6730
Half
13.11 mi11:37:571:30:216:544:46
6:59
#6763
25K
15.53 mi11:55:291:47:536:5717:32
7:14
#6886
30K
18.64 mi12:19:102:11:347:0323:41
7:37
#7052
20M
20.00 mi12:29:482:22:127:0710:38
7:49
#7132
21M
21.00 mi12:38:272:30:517:118:39
8:39
#7284
35K
21.75 mi12:43:582:36:227:115:31
7:22
#7250
23M
23.00 mi12:53:532:46:177:149:55
7:55
#7317
24M
24.00 mi13:01:332:53:577:157:40
7:40
#7339
40K
24.85 mi13:08:073:00:317:166:34
7:41
#7311
25.2M
25.20 mi13:11:043:03:287:172:57
8:33
#7313
Finish
26.22 mi13:18:273:10:517:177:23
7:15
#7290
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi6087558655866939(Top 24%)6203(Top 39%)6203(Top 311%)
10K6.21 mi3.10 mi6368-2815814-2285814-2286823(Top 24%)6139(Top 38%)6139(Top 308%)
15K9.32 mi3.11 mi6540-1725914-1005914-1006939(Top 24%)6203(Top 39%)6203(Top 311%)
20K12.43 mi3.11 mi6730-1906070-1566070-1567072(Top 25%)6259(Top 39%)6259(Top 314%)
Half13.11 mi0.68 mi6763-336096-266096-267433(Top 26%)6523(Top 41%)6523(Top 327%)
25K15.53 mi2.42 mi6886-1236164-686164-687806(Top 27%)6635(Top 41%)6635(Top 332%)
30K18.64 mi3.11 mi7052-1666248-846248-848607(Top 30%)6932(Top 43%)6932(Top 347%)
20M20.00 mi1.36 mi7132-806278-306278-309166(Top 32%)7077(Top 44%)7077(Top 355%)
21M21.00 mi1.00 mi7284-1526348-706348-7011336(Top 40%)8034(Top 50%)8034(Top 403%)
35K21.75 mi0.75 mi7250+346303+456303+457668(Top 27%)6085(Top 38%)6085(Top 305%)
23M23.00 mi1.25 mi7317-676300+36300+39407(Top 33%)6917(Top 43%)6917(Top 347%)
24M24.00 mi1.00 mi7339-226285+156285+158855(Top 31%)6562(Top 41%)6562(Top 329%)
40K24.85 mi0.85 mi7311+286237+486237+487913(Top 28%)5933(Top 37%)5933(Top 297%)
25.2M25.20 mi0.35 mi7313-26229+86229+89005(Top 32%)6424(Top 40%)6424(Top 322%)
Finish26.22 mi1.02 mi7290+236187+426187+427321(Top 26%)5506(Top 34%)5506(Top 276%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21stories
+97ft-345ft

Overall

6939

Males

6203

M50-54

6203

5K→10K

3.1 - 6.2 mi

Top 24%
×5stories
+79ft-138ft

Overall

6823

Males

6139

M50-54

6139

10K→15K

6.2 - 9.3 mi

Top 24%
×3stories
+67ft-78ft

Overall

6939

Males

6203

M50-54

6203

15K→20K

9.3 - 12.4 mi

Top 25%
×5stories
+106ft-86ft

Overall

7072

Males

6259

M50-54

6259

20K→Half

12.4 - 13.1 mi

Top 26%
×2stories
+19ft-37ft

Overall

7433

Males

6523

M50-54

6523

Half→25K

13.1 - 15.5 mi

Top 27%
×4stories
+66ft-88ft

Overall

7806

Males

6635

M50-54

6635

25K→30K

15.5 - 18.6 mi

Top 30%
×9stories
+181ft-148ft

Overall

8607

Males

6932

M50-54

6932

30K→20M

18.6 - 20.0 mi

Top 32%
×5stories
+64ft-50ft

Overall

9166

Males

7077

M50-54

7077

20M→21M

20.0 - 21.0 mi

Top 40%
×8stories
+106ft-24ft

Overall

11336

Males

8034

M50-54

8034

21M→35K

21.0 - 21.8 mi

Top 27%
×7stories
+17ft-86ft

Overall

7668

Males

6085

M50-54

6085

35K→23M

21.8 - 23.0 mi

Top 33%
×5stories
+23ft-63ft

Overall

9407

Males

6917

M50-54

6917

23M→24M

23.0 - 24.0 mi

Top 31%
×6stories
+12ft-82ft

Overall

8855

Males

6562

M50-54

6562

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7913

Males

5933

M50-54

5933

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

9005

Males

6424

M50-54

6424

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2stories
+22ft-21ft

Overall

7321

Males

5506

M50-54

5506

Passing Analysis

Category:
Athletes Passed
997
Passed By
2200
Net Change
-1203
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6087
5K → 10K99380-281#6087#6368
10K → 15K100272-172#6368#6540
15K → 20K76266-190#6540#6730
20K → Half2053-33#6730#6763
Half → 25K81204-123#6763#6886
25K → 30K130296-166#6886#7052
30K → 20M78158-80#7052#7132
20M → 21M40192-152#7132#7284
21M → 35K6430+34#7284#7250
35K → 23M72139-67#7250#7317
23M → 24M6688-22#7317#7339
24M → 40K7951+28#7339#7311
40K → 25.2M2830-2#7311#7313
25.2M → Finish6441+23#7313#7290
TOTALS9972200-1203
📊

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