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BOSTON MARATHON 2025

Langston Hazen

Bib: 3531•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 5%
Gender (Male)
#0 / 16105
Top 8%
Division (M18-39)
#0 / 5642
Top 19%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:02
Rank: #1505
Start → 5K
19:02 | 6:08/mi
10K· 6.21 mi
38:08
Rank: #1576 (-71)
5K → 10K
19:06 | 6:09/mi
15K· 9.32 mi
57:09
Rank: #1540 (+36)
10K → 15K
19:01 | 6:07/mi
20K· 12.43 mi
1:16:16
Rank: #1479 (+61)
15K → 20K
19:07 | 6:09/mi
Half· 13.11 mi
1:20:24
Rank: #1474 (+5)
20K → Half
4:08 | 6:03/mi
25K· 15.53 mi
1:35:16
Rank: #1402 (+72)
Half → 25K
14:52 | 6:08/mi
30K· 18.64 mi
1:54:42
Rank: #1311 (+91)
25K → 30K
19:26 | 6:15/mi
20M
2:03:18
Rank: #1276 (+35)
30K → 20M
8:36 | 6:20/mi
21M
2:10:01
Rank: #1250 (+26)
20M → 21M
6:43 | 6:43/mi
35K· 21.75 mi
2:14:44
Rank: #1233 (+17)
21M → 35K
4:43 | 6:18/mi
23M
2:23:02
Rank: #1240 (-7)
35K → 23M
8:18 | 6:38/mi
24M
2:29:36
Rank: #1264 (-24)
23M → 24M
6:34 | 6:34/mi
40K· 24.85 mi
2:35:22
Rank: #1292 (-28)
24M → 40K
5:46 | 6:45/mi
25.2M
2:37:50
Rank: #1291 (+1)
40K → 25.2M
2:28 | 7:09/mi
Finish· 26.22 mi
2:44:25
Rank: #1309 (-18)
25.2M → Finish
6:35 | 6:28/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:24
Pace6:08 /mi
2nd Half
Distance13.11 mi
Time1:24:01
Pace6:25 /mi
📊Positive Split: 4.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:3819:026:0819:02
6:08
-
10K
6.21 mi10:40:4438:086:0819:06
6:09
+0:01
15K
9.32 mi10:59:4557:096:0819:01
6:07
-0:02
20K
12.43 mi11:18:521:16:166:0819:07
6:09
+0:02
Half
13.11 mi11:23:001:20:246:084:08
6:03
-0:06
25K
15.53 mi11:37:521:35:166:0814:52
6:08
+0:05
30K
18.64 mi11:57:181:54:426:0919:26
6:15
+0:07
20M
20.00 mi12:05:542:03:186:108:36
6:20
+0:05
21M
21.00 mi12:12:372:10:016:116:43
6:43
+0:23
35K
21.75 mi12:17:202:14:446:124:43
6:18
-0:25
23M
23.00 mi12:25:382:23:026:138:18
6:38
+0:20
24M
24.00 mi12:32:122:29:366:146:34
6:34
-0:04
40K
24.85 mi12:37:582:35:226:155:46
6:45
+0:11
25.2M
25.20 mi12:40:262:37:506:162:28
7:09
+0:24
Finish
26.22 mi12:47:012:44:256:176:35
6:28
-0:41

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

6:03 /mi

Average Pace

6:17 /mi

Slowest Pace

7:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:29:28

91% of race

Time at Steady Pace

12:29

8% of race

Time at Slower Pace

2:28

2% of race

Average Pace: 6:16 /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 mi10:21:3819:026:0819:02
6:08
#1505
10K
6.21 mi10:40:4438:086:0819:06
6:09
#1576
15K
9.32 mi10:59:4557:096:0819:01
6:07
#1540
20K
12.43 mi11:18:521:16:166:0819:07
6:09
#1479
Half
13.11 mi11:23:001:20:246:084:08
6:03
#1474
25K
15.53 mi11:37:521:35:166:0814:52
6:08
#1402
30K
18.64 mi11:57:181:54:426:0919:26
6:15
#1311
20M
20.00 mi12:05:542:03:186:108:36
6:20
#1276
21M
21.00 mi12:12:372:10:016:116:43
6:43
#1250
35K
21.75 mi12:17:202:14:446:124:43
6:18
#1233
23M
23.00 mi12:25:382:23:026:138:18
6:38
#1240
24M
24.00 mi12:32:122:29:366:146:34
6:34
#1264
40K
24.85 mi12:37:582:35:226:155:46
6:45
#1292
25.2M
25.20 mi12:40:262:37:506:162:28
7:09
#1291
Finish
26.22 mi12:47:012:44:256:176:35
6:28
#1309
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1505143514351479(Top 5%)1408(Top 9%)1408(Top 25%)
10K6.21 mi3.10 mi1576-711498-631498-631661(Top 6%)1581(Top 10%)1581(Top 28%)
15K9.32 mi3.11 mi1540+361464+341464+341479(Top 5%)1408(Top 9%)1408(Top 25%)
20K12.43 mi3.11 mi1479+611404+601404+601380(Top 5%)1307(Top 8%)1307(Top 23%)
Half13.11 mi0.68 mi1474+51399+51399+51371(Top 5%)1303(Top 8%)1303(Top 23%)
25K15.53 mi2.42 mi1402+721330+691330+691213(Top 4%)1146(Top 7%)1146(Top 20%)
30K18.64 mi3.11 mi1311+911237+931237+931074(Top 4%)1010(Top 6%)1010(Top 18%)
20M20.00 mi1.36 mi1276+351204+331204+331039(Top 4%)981(Top 6%)981(Top 17%)
21M21.00 mi1.00 mi1250+261179+251179+251250(Top 4%)1180(Top 7%)1180(Top 21%)
35K21.75 mi0.75 mi1233+171162+171162+171603(Top 6%)1503(Top 9%)1503(Top 27%)
23M23.00 mi1.25 mi1240-71167-51167-51928(Top 7%)1799(Top 11%)1799(Top 32%)
24M24.00 mi1.00 mi1264-241189-221189-222302(Top 8%)2127(Top 13%)2127(Top 38%)
40K24.85 mi0.85 mi1292-281216-271216-272546(Top 9%)2314(Top 14%)2314(Top 41%)
25.2M25.20 mi0.35 mi1291+11215+11215+11913(Top 7%)1726(Top 11%)1726(Top 31%)
Finish26.22 mi1.02 mi1309-181231-161231-162584(Top 9%)2334(Top 14%)2334(Top 41%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1479

Males

1408

M18-39

1408

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1661

Males

1581

M18-39

1581

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1479

Males

1408

M18-39

1408

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1380

Males

1307

M18-39

1307

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1371

Males

1303

M18-39

1303

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1213

Males

1146

M18-39

1146

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1074

Males

1010

M18-39

1010

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1039

Males

981

M18-39

981

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1250

Males

1180

M18-39

1180

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1603

Males

1503

M18-39

1503

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

1928

Males

1799

M18-39

1799

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2302

Males

2127

M18-39

2127

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2546

Males

2314

M18-39

2314

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1913

Males

1726

M18-39

1726

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2584

Males

2334

M18-39

2334

Passing Analysis

Category:
Athletes Passed
584
Passed By
388
Net Change
+196
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1505
5K → 10K48119-71#1505#1576
10K → 15K6428+36#1576#1540
15K → 20K8625+61#1540#1479
20K → Half138+5#1479#1474
Half → 25K786+72#1474#1402
25K → 30K10110+91#1402#1311
30K → 20M4510+35#1311#1276
20M → 21M3711+26#1276#1250
21M → 35K236+17#1250#1233
35K → 23M3845-7#1233#1240
23M → 24M1640-24#1240#1264
24M → 40K836-28#1264#1292
40K → 25.2M1211+1#1292#1291
25.2M → Finish1533-18#1291#1309
TOTALS584388+196
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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