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BOSTON MARATHON 2025

Eduardo Lozano

Bib: 19020•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
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
8:02/mi
24:58
↑ 97↓ 3451.5%
10K· 6.21 mi
8:03/mi
49:58
↑ 79↓ 1380.4%
15K· 9.32 mi
8:03/mi
1:14:59
↑ 67↓ 78
20K· 12.43 mi
8:50/mi
1:42:27
↑ 106↓ 860.1%
Half· 13.11 mi
8:14/mi
1:48:04
↑ 19↓ 370.5%
25K· 15.53 mi
9:02/mi
2:09:57
↑ 66↓ 880.2%
30K· 18.64 mi
9:24/mi
2:39:08
↑ 181↓ 1480.2%
20M
9:04/mi
2:51:27
↑ 64↓ 500.2%
21M
11:51/mi
3:03:18
↑ 106↓ 241.6%
35K· 21.75 mi
9:08/mi
3:10:08
↑ 17↓ 861.7%
23M
9:00/mi
3:21:24
↑ 23↓ 630.6%
24M
8:33/mi
3:29:57
↓ 821.3%
40K· 24.85 mi
9:32/mi
3:38:06
↓ 200.3%
25.2M
9:37/mi
3:41:25
↑ 13↓ 160.2%
Finish· 26.22 mi
9:03/mi
3:50:38
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:04
Pace8:15 /mi
2nd Half
Distance13.11 mi
Time2:02:34
Pace9:21 /mi
📊Positive Split: 13.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:0424:588:0224:58
8:02
-
10K
6.21 mi11:40:0449:588:0225:00
8:03
+0:01
15K
9.32 mi12:05:051:14:598:0325:01
8:03
0:00
20K
12.43 mi12:32:331:42:278:1527:28
8:50
+0:47
Half
13.11 mi12:38:101:48:048:155:37
8:14
-0:36
25K
15.53 mi13:00:032:09:578:2221:53
9:02
+0:48
30K
18.64 mi13:29:142:39:088:3229:11
9:24
+0:22
20M
20.00 mi13:41:332:51:278:3412:19
9:04
-0:20
21M
21.00 mi13:53:243:03:188:4411:51
11:51
+2:47
35K
21.75 mi14:00:143:10:088:456:50
9:08
-2:43
23M
23.00 mi14:11:303:21:248:4511:16
9:00
-0:08
24M
24.00 mi14:20:033:29:578:458:33
8:33
-0:27
40K
24.85 mi14:28:123:38:068:468:09
9:32
+0:59
25.2M
25.20 mi14:31:313:41:258:473:19
9:37
+0:05
Finish
26.22 mi14:40:443:50:388:489:13
9:03
-0:34

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

8:02 /mi

Average Pace

8:48 /mi

Slowest Pace

11:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:29:09

39% of race

Time at Steady Pace

1:58:10

51% of race

Time at Slower Pace

23:19

10% of race

Average Pace: 8:48 /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 mi11:15:0424:588:0224:58
8:02
#16864
10K
6.21 mi11:40:0449:588:0225:00
8:03
#16838
15K
9.32 mi12:05:051:14:598:0325:01
8:03
#16669
20K
12.43 mi12:32:331:42:278:1527:28
8:50
#17635
Half
13.11 mi12:38:101:48:048:155:37
8:14
#17631
25K
15.53 mi13:00:032:09:578:2221:53
9:02
#18021
30K
18.64 mi13:29:142:39:088:3229:11
9:24
#18363
20M
20.00 mi13:41:332:51:278:3412:19
9:04
#18248
21M
21.00 mi13:53:243:03:188:4411:51
11:51
#18775
35K
21.75 mi14:00:143:10:088:456:50
9:08
#18791
23M
23.00 mi14:11:303:21:248:4511:16
9:00
#18622
24M
24.00 mi14:20:033:29:578:458:33
8:33
#18438
40K
24.85 mi14:28:123:38:068:468:09
9:32
#18450
25.2M
25.20 mi14:31:313:41:258:473:19
9:37
#18401
Finish
26.22 mi14:40:443:50:388:489:13
9:03
#18458
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi16864111511115116418(Top 58%)10982(Top 68%)10982(Top 666%)
10K6.21 mi3.10 mi16838+2611156-511156-516810(Top 59%)11168(Top 69%)11168(Top 678%)
15K9.32 mi3.11 mi16669+16911096+6011096+6016418(Top 58%)10982(Top 68%)10982(Top 666%)
20K12.43 mi3.11 mi17635-96611466-37011466-37020145(Top 71%)12522(Top 78%)12522(Top 760%)
Half13.11 mi0.68 mi17631+411465+111465+117457(Top 61%)11396(Top 71%)11396(Top 692%)
25K15.53 mi2.42 mi18021-39011600-13511600-13520010(Top 70%)12413(Top 77%)12413(Top 753%)
30K18.64 mi3.11 mi18363-34211727-12711727-12719497(Top 69%)12056(Top 75%)12056(Top 732%)
20M20.00 mi1.36 mi18248+11511639+8811639+8817126(Top 60%)10879(Top 68%)10879(Top 660%)
21M21.00 mi1.00 mi18775-52711845-20611845-20623300(Top 82%)13582(Top 84%)13582(Top 824%)
35K21.75 mi0.75 mi18791-1611835+1011835+1018851(Top 66%)11420(Top 71%)11420(Top 693%)
23M23.00 mi1.25 mi18622+16911735+10011735+10016235(Top 57%)10182(Top 63%)10182(Top 618%)
24M24.00 mi1.00 mi18438+18411626+10911626+10914813(Top 52%)9506(Top 59%)9506(Top 577%)
40K24.85 mi0.85 mi18450-1211605+2111605+2118829(Top 66%)11238(Top 70%)11238(Top 682%)
25.2M25.20 mi0.35 mi18401+4911574+3111574+3115167(Top 53%)9506(Top 59%)9506(Top 577%)
Finish26.22 mi1.02 mi18458-5711575-111575-119247(Top 68%)11455(Top 71%)11455(Top 695%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21story building
+97ft-345ft

Overall

16418

Males

10982

M55-59

10982

5K→10K

3.1 - 6.2 mi

Top 59%
×5story building
+79ft-138ft

Overall

16810

Males

11168

M55-59

11168

10K→15K

6.2 - 9.3 mi

Top 58%
×3story building
+67ft-78ft

Overall

16418

Males

10982

M55-59

10982

15K→20K

9.3 - 12.4 mi

Top 71%
×5story building
+106ft-86ft

Overall

20145

Males

12522

M55-59

12522

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

17457

Males

11396

M55-59

11396

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

20010

Males

12413

M55-59

12413

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

19497

Males

12056

M55-59

12056

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

17126

Males

10879

M55-59

10879

20M→21M

20.0 - 21.0 mi

Top 82%
×8story building
+106ft-24ft

Overall

23300

Males

13582

M55-59

13582

21M→35K

21.0 - 21.8 mi

Top 66%
×7story building
+17ft-86ft

Overall

18851

Males

11420

M55-59

11420

35K→23M

21.8 - 23.0 mi

Top 57%
×5story building
+23ft-63ft

Overall

16235

Males

10182

M55-59

10182

23M→24M

23.0 - 24.0 mi

Top 52%
×6story building
+12ft-82ft

Overall

14813

Males

9506

M55-59

9506

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18829

Males

11238

M55-59

11238

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

15167

Males

9506

M55-59

9506

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2story building
+22ft-21ft

Overall

19247

Males

11455

M55-59

11455

Passing Analysis

Category:
Athletes Passed
1687
Passed By
3281
Net Change
-1594
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16864
5K → 10K312286+26#16864#16838
10K → 15K287118+169#16838#16669
15K → 20K431009-966#16669#17635
20K → Half3834+4#17635#17631
Half → 25K81471-390#17631#18021
25K → 30K142484-342#18021#18363
30K → 20M17257+115#18363#18248
20M → 21M20547-527#18248#18775
21M → 35K5470-16#18775#18791
35K → 23M18920+169#18791#18622
23M → 24M1917+184#18622#18438
24M → 40K6375-12#18438#18450
40K → 25.2M545+49#18450#18401
25.2M → Finish4198-57#18401#18458
TOTALS16873281-1594
📊

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