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BOSTON MARATHON 2025

Guang Long

Bib: 12322•M

MA

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
7:09/mi
22:12
↑ 97↓ 3451.5%
10K· 6.21 mi
7:18/mi
44:54
↑ 79↓ 1380.4%
15K· 9.32 mi
7:24/mi
1:07:54
↑ 67↓ 78
20K· 12.43 mi
7:36/mi
1:31:31
↑ 106↓ 860.1%
Half· 13.11 mi
7:43/mi
1:36:47
↑ 19↓ 370.5%
25K· 15.53 mi
8:58/mi
1:58:32
↑ 66↓ 880.2%
30K· 18.64 mi
9:54/mi
2:29:19
↑ 181↓ 1480.2%
20M
10:12/mi
2:43:10
↑ 64↓ 500.2%
21M
10:44/mi
2:53:54
↑ 106↓ 241.6%
35K· 21.75 mi
8:51/mi
3:00:31
↑ 17↓ 861.7%
23M
9:35/mi
3:12:31
↑ 23↓ 630.6%
24M
8:50/mi
3:21:21
↓ 821.3%
40K· 24.85 mi
9:04/mi
3:29:06
↓ 200.3%
25.2M
9:43/mi
3:32:27
↑ 13↓ 160.2%
Finish· 26.22 mi
8:35/mi
3:41:12
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:47
Pace7:23 /mi
2nd Half
Distance13.11 mi
Time2:04:25
Pace9:29 /mi
📊Positive Split: 28.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:1122:127:0922:12
7:09
-
10K
6.21 mi11:13:5344:547:1422:42
7:18
+0:09
15K
9.32 mi11:36:531:07:547:1723:00
7:24
+0:06
20K
12.43 mi12:00:301:31:317:2223:37
7:36
+0:12
Half
13.11 mi12:05:461:36:477:235:16
7:43
+0:07
25K
15.53 mi12:27:311:58:327:3821:45
8:58
+1:15
30K
18.64 mi12:58:182:29:198:0130:47
9:54
+0:56
20M
20.00 mi13:12:092:43:108:0913:51
10:12
+0:18
21M
21.00 mi13:22:532:53:548:1710:44
10:44
+0:32
35K
21.75 mi13:29:303:00:318:186:37
8:51
-1:53
23M
23.00 mi13:41:303:12:318:2212:00
9:35
+0:44
24M
24.00 mi13:50:203:21:218:238:50
8:50
-0:45
40K
24.85 mi13:58:053:29:068:257:45
9:04
+0:14
25.2M
25.20 mi14:01:263:32:278:263:21
9:43
+0:39
Finish
26.22 mi14:10:113:41:128:278:45
8:35
-1:08

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

7:09 /mi

Average Pace

8:27 /mi

Slowest Pace

10:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:47

44% of race

Time at Steady Pace

53:42

24% of race

Time at Slower Pace

1:10:43

32% of race

Average Pace: 8:26 /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 mi10:51:1122:127:0922:12
7:09
#9029
10K
6.21 mi11:13:5344:547:1422:42
7:18
#9683
15K
9.32 mi11:36:531:07:547:1723:00
7:24
#10086
20K
12.43 mi12:00:301:31:317:2223:37
7:36
#10438
Half
13.11 mi12:05:461:36:477:235:16
7:43
#10595
25K
15.53 mi12:27:311:58:327:3821:45
8:58
#12440
30K
18.64 mi12:58:182:29:198:0130:47
9:54
#14818
20M
20.00 mi13:12:092:43:108:0913:51
10:12
#15536
21M
21.00 mi13:22:532:53:548:1710:44
10:44
#15952
35K
21.75 mi13:29:303:00:318:186:37
8:51
#15979
23M
23.00 mi13:41:303:12:318:2212:00
9:35
#16143
24M
24.00 mi13:50:203:21:218:238:50
8:50
#16134
40K
24.85 mi13:58:053:29:068:257:45
9:04
#16154
25.2M
25.20 mi14:01:263:32:278:263:21
9:43
#16143
Finish
26.22 mi14:10:113:41:128:278:45
8:35
#16168
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi90297631763110906(Top 38%)8554(Top 53%)8554(Top 429%)
10K6.21 mi3.10 mi9683-6548004-3738004-37310398(Top 37%)8360(Top 52%)8360(Top 419%)
15K9.32 mi3.11 mi10086-4038183-1798183-17910906(Top 38%)8554(Top 53%)8554(Top 429%)
20K12.43 mi3.11 mi10438-3528343-1608343-16011627(Top 41%)8804(Top 55%)8804(Top 441%)
Half13.11 mi0.68 mi10595-1578422-798422-7913535(Top 48%)9723(Top 60%)9723(Top 487%)
25K15.53 mi2.42 mi12440-18459246-8249246-82419762(Top 70%)12305(Top 76%)12305(Top 616%)
30K18.64 mi3.11 mi14818-237810203-95710203-95721321(Top 75%)12855(Top 80%)12855(Top 644%)
20M20.00 mi1.36 mi15536-71810499-29610499-29621537(Top 76%)12828(Top 80%)12828(Top 643%)
21M21.00 mi1.00 mi15952-41610631-13210631-13220673(Top 73%)12335(Top 77%)12335(Top 618%)
35K21.75 mi0.75 mi15979-2710625+610625+617447(Top 61%)10797(Top 67%)10797(Top 541%)
23M23.00 mi1.25 mi16143-16410664-3910664-3919009(Top 67%)11439(Top 71%)11439(Top 573%)
24M24.00 mi1.00 mi16134+910637+2710637+2716478(Top 58%)10242(Top 64%)10242(Top 513%)
40K24.85 mi0.85 mi16154-2010623+1410623+1416660(Top 59%)10212(Top 63%)10212(Top 512%)
25.2M25.20 mi0.35 mi16143+1110608+1510608+1515641(Top 55%)9707(Top 60%)9707(Top 486%)
Finish26.22 mi1.02 mi16168-2510598+1010598+1016751(Top 59%)10278(Top 64%)10278(Top 515%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10906

Males

8554

M50-54

8554

5K→10K

3.1 - 6.2 mi

Top 37%
×5story building
+79ft-138ft

Overall

10398

Males

8360

M50-54

8360

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10906

Males

8554

M50-54

8554

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

11627

Males

8804

M50-54

8804

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

13535

Males

9723

M50-54

9723

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

19762

Males

12305

M50-54

12305

25K→30K

15.5 - 18.6 mi

Top 75%
×9story building
+181ft-148ft

Overall

21321

Males

12855

M50-54

12855

30K→20M

18.6 - 20.0 mi

Top 76%
×5story building
+64ft-50ft

Overall

21537

Males

12828

M50-54

12828

20M→21M

20.0 - 21.0 mi

Top 73%
×8story building
+106ft-24ft

Overall

20673

Males

12335

M50-54

12335

21M→35K

21.0 - 21.8 mi

Top 61%
×7story building
+17ft-86ft

Overall

17447

Males

10797

M50-54

10797

35K→23M

21.8 - 23.0 mi

Top 67%
×5story building
+23ft-63ft

Overall

19009

Males

11439

M50-54

11439

23M→24M

23.0 - 24.0 mi

Top 58%
×6story building
+12ft-82ft

Overall

16478

Males

10242

M50-54

10242

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

16660

Males

10212

M50-54

10212

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15641

Males

9707

M50-54

9707

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2story building
+22ft-21ft

Overall

16751

Males

10278

M50-54

10278

Passing Analysis

Category:
Athletes Passed
688
Passed By
7823
Net Change
-7139
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9029
5K → 10K62715-654#9029#9683
10K → 15K63464-403#9683#10086
15K → 20K91442-352#10086#10438
20K → Half6163-157#10438#10595
Half → 25K131858-1845#10595#12440
25K → 30K232401-2378#12440#14818
30K → 20M26744-718#14818#15536
20M → 21M34450-416#15536#15952
21M → 35K6390-27#15952#15979
35K → 23M72236-164#15979#16143
23M → 24M7768+9#16143#16134
24M → 40K5575-20#16134#16154
40K → 25.2M3524+11#16154#16143
25.2M → Finish6893-25#16143#16168
TOTALS6887823-7139
📊

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