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BOSTON MARATHON 2025

Hector Lozano

Bib: 30557•M

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
9:18/mi
28:54
↑ 97↓ 3451.5%
10K· 6.21 mi
9:31/mi
58:28
↑ 79↓ 1380.4%
15K· 9.32 mi
9:30/mi
1:28:00
↑ 67↓ 78
20K· 12.43 mi
9:43/mi
1:58:11
↑ 106↓ 860.1%
Half· 13.11 mi
9:27/mi
2:04:38
↑ 19↓ 370.5%
25K· 15.53 mi
11:07/mi
2:31:36
↑ 66↓ 880.2%
30K· 18.64 mi
11:37/mi
3:07:42
↑ 181↓ 1480.2%
20M
11:13/mi
3:22:56
↑ 64↓ 500.2%
21M
13:35/mi
3:36:31
↑ 106↓ 241.6%
35K· 21.75 mi
10:39/mi
3:44:29
↑ 17↓ 861.7%
23M
10:43/mi
3:57:54
↑ 23↓ 630.6%
24M
10:17/mi
4:08:11
↓ 821.3%
40K· 24.85 mi
10:21/mi
4:17:02
↓ 200.3%
25.2M
11:50/mi
4:21:07
↑ 13↓ 160.2%
Finish· 26.22 mi
10:35/mi
4:31:54
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:04:38
Pace9:30 /mi
2nd Half
Distance13.11 mi
Time2:27:16
Pace11:14 /mi
📊Positive Split: 18.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:0828:549:1828:54
9:18
-
10K
6.21 mi12:19:4258:289:2529:34
9:31
+0:13
15K
9.32 mi12:49:141:28:009:2629:32
9:30
-0:01
20K
12.43 mi13:19:251:58:119:3130:11
9:43
+0:13
Half
13.11 mi13:25:522:04:389:306:27
9:27
-0:16
25K
15.53 mi13:52:502:31:369:4626:58
11:07
+1:40
30K
18.64 mi14:28:563:07:4210:0436:06
11:37
+0:30
20M
20.00 mi14:44:103:22:5610:0915:14
11:13
-0:24
21M
21.00 mi14:57:453:36:3110:1913:35
13:35
+2:22
35K
21.75 mi15:05:433:44:2910:197:58
10:39
-2:56
23M
23.00 mi15:19:083:57:5410:2113:25
10:43
+0:04
24M
24.00 mi15:29:254:08:1110:2010:17
10:17
-0:26
40K
24.85 mi15:38:164:17:0210:208:51
10:21
+0:04
25.2M
25.20 mi15:42:214:21:0710:224:05
11:50
+1:29
Finish
26.22 mi15:53:084:31:5410:2310:47
10:35
-1:15

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

9:18 /mi

Average Pace

10:23 /mi

Slowest Pace

13:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:04:38

46% of race

Time at Steady Pace

1:18:16

29% of race

Time at Slower Pace

1:09:00

25% of race

Average Pace: 10:22 /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 mi11:50:0828:549:1828:54
9:18
#23561
10K
6.21 mi12:19:4258:289:2529:34
9:31
#23919
15K
9.32 mi12:49:141:28:009:2629:32
9:30
#23875
20K
12.43 mi13:19:251:58:119:3130:11
9:43
#23768
Half
13.11 mi13:25:522:04:389:306:27
9:27
#23756
25K
15.53 mi13:52:502:31:369:4626:58
11:07
#24124
30K
18.64 mi14:28:563:07:4210:0436:06
11:37
#24388
20M
20.00 mi14:44:103:22:5610:0915:14
11:13
#24362
21M
21.00 mi14:57:453:36:3110:1913:35
13:35
#24482
35K
21.75 mi15:05:433:44:2910:197:58
10:39
#24452
23M
23.00 mi15:19:083:57:5410:2113:25
10:43
#24349
24M
24.00 mi15:29:254:08:1110:2010:17
10:17
#24258
40K
24.85 mi15:38:164:17:0210:208:51
10:21
#24188
25.2M
25.20 mi15:42:214:21:0710:224:05
11:50
#24168
Finish
26.22 mi15:53:084:31:5410:2310:47
10:35
#24184
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi23561140331403323763(Top 84%)14180(Top 88%)14180(Top 710%)
10K6.21 mi3.10 mi23919-35814214-18114214-18124157(Top 85%)14320(Top 89%)14320(Top 717%)
15K9.32 mi3.11 mi23875+4414206+814206+823763(Top 84%)14180(Top 88%)14180(Top 710%)
20K12.43 mi3.11 mi23768+10714145+6114145+6123526(Top 83%)14028(Top 87%)14028(Top 703%)
Half13.11 mi0.68 mi23756+12141451414523412(Top 82%)13975(Top 87%)13975(Top 700%)
25K15.53 mi2.42 mi24124-36814286-14114286-14125376(Top 89%)14806(Top 92%)14806(Top 742%)
30K18.64 mi3.11 mi24388-26414384-9814384-9825027(Top 88%)14540(Top 90%)14540(Top 728%)
20M20.00 mi1.36 mi24362+2614357+2714357+2724015(Top 85%)13991(Top 87%)13991(Top 701%)
21M21.00 mi1.00 mi24482-12014398-4114398-4125750(Top 91%)14759(Top 92%)14759(Top 739%)
35K21.75 mi0.75 mi24452+3014372+2614372+2623468(Top 83%)13620(Top 85%)13620(Top 682%)
23M23.00 mi1.25 mi24349+10314312+6014312+6022558(Top 79%)13136(Top 82%)13136(Top 658%)
24M24.00 mi1.00 mi24258+9114261+5114261+5122192(Top 78%)12908(Top 80%)12908(Top 647%)
40K24.85 mi0.85 mi24188+7014205+5614205+5621533(Top 76%)12537(Top 78%)12537(Top 628%)
25.2M25.20 mi0.35 mi24168+2014186+1914186+1922888(Top 81%)13231(Top 82%)13231(Top 663%)
Finish26.22 mi1.02 mi24184-1614190-414190-424458(Top 86%)14012(Top 87%)14012(Top 702%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 84%
×21story building
+97ft-345ft

Overall

23763

Males

14180

M50-54

14180

5K→10K

3.1 - 6.2 mi

Top 85%
×5story building
+79ft-138ft

Overall

24157

Males

14320

M50-54

14320

10K→15K

6.2 - 9.3 mi

Top 84%
×3story building
+67ft-78ft

Overall

23763

Males

14180

M50-54

14180

15K→20K

9.3 - 12.4 mi

Top 83%
×5story building
+106ft-86ft

Overall

23526

Males

14028

M50-54

14028

20K→Half

12.4 - 13.1 mi

Top 82%
×2story building
+19ft-37ft

Overall

23412

Males

13975

M50-54

13975

Half→25K

13.1 - 15.5 mi

Top 89%
×4story building
+66ft-88ft

Overall

25376

Males

14806

M50-54

14806

25K→30K

15.5 - 18.6 mi

Top 88%
×9story building
+181ft-148ft

Overall

25027

Males

14540

M50-54

14540

30K→20M

18.6 - 20.0 mi

Top 85%
×5story building
+64ft-50ft

Overall

24015

Males

13991

M50-54

13991

20M→21M

20.0 - 21.0 mi

Top 91%
×8story building
+106ft-24ft

Overall

25750

Males

14759

M50-54

14759

21M→35K

21.0 - 21.8 mi

Top 83%
×7story building
+17ft-86ft

Overall

23468

Males

13620

M50-54

13620

35K→23M

21.8 - 23.0 mi

Top 79%
×5story building
+23ft-63ft

Overall

22558

Males

13136

M50-54

13136

23M→24M

23.0 - 24.0 mi

Top 78%
×6story building
+12ft-82ft

Overall

22192

Males

12908

M50-54

12908

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

21533

Males

12537

M50-54

12537

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

22888

Males

13231

M50-54

13231

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2story building
+22ft-21ft

Overall

24458

Males

14012

M50-54

14012

Passing Analysis

Category:
Athletes Passed
1118
Passed By
1741
Net Change
-623
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23561
5K → 10K119477-358#23561#23919
10K → 15K173129+44#23919#23875
15K → 20K18275+107#23875#23768
20K → Half2412+12#23768#23756
Half → 25K42410-368#23756#24124
25K → 30K65329-264#24124#24388
30K → 20M7852+26#24388#24362
20M → 21M28148-120#24362#24482
21M → 35K4818+30#24482#24452
35K → 23M11815+103#24452#24349
23M → 24M976+91#24349#24258
24M → 40K8010+70#24258#24188
40K → 25.2M288+20#24188#24168
25.2M → Finish3652-16#24168#24184
TOTALS11181741-623
📊

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