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BOSTON MARATHON 2025

Eric Lozick

Bib: 5495•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 18%
Gender (Male)
#0 / 16105
Top 28%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:32
Rank: #2369
Start → 5K
19:32 | 6:17/mi
10K· 6.21 mi
39:27
Rank: #2722 (-353)
5K → 10K
19:55 | 6:25/mi
15K· 9.32 mi
59:41
Rank: #3029 (-307)
10K → 15K
20:14 | 6:31/mi
20K· 12.43 mi
1:21:13
Rank: #3740 (-711)
15K → 20K
21:32 | 6:56/mi
Half· 13.11 mi
1:25:54
Rank: #3843 (-103)
20K → Half
4:41 | 6:52/mi
25K· 15.53 mi
1:42:39
Rank: #4048 (-205)
Half → 25K
16:45 | 6:55/mi
30K· 18.64 mi
2:05:06
Rank: #4403 (-355)
25K → 30K
22:27 | 7:14/mi
20M
2:15:18
Rank: #4646 (-243)
30K → 20M
10:12 | 7:30/mi
21M
2:23:05
Rank: #4716 (-70)
20M → 21M
7:47 | 7:47/mi
35K· 21.75 mi
2:28:26
Rank: #4752 (-36)
21M → 35K
5:21 | 7:09/mi
23M
2:37:57
Rank: #4947 (-195)
35K → 23M
9:31 | 7:36/mi
24M
2:45:08
Rank: #4977 (-30)
23M → 24M
7:11 | 7:11/mi
40K· 24.85 mi
2:51:29
Rank: #5008 (-31)
24M → 40K
6:21 | 7:26/mi
25.2M
2:54:09
Rank: #4989 (+19)
40K → 25.2M
2:40 | 7:44/mi
Finish· 26.22 mi
3:01:28
Rank: #5007 (-18)
25.2M → Finish
7:19 | 7:11/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:54
Pace6:33 /mi
2nd Half
Distance13.11 mi
Time1:35:34
Pace7:17 /mi
📊Positive Split: 11.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:5519:326:1719:32
6:17
-
10K
6.21 mi10:42:5039:276:2119:55
6:25
+0:08
15K
9.32 mi11:03:0459:416:2420:14
6:31
+0:06
20K
12.43 mi11:24:361:21:136:3221:32
6:56
+0:25
Half
13.11 mi11:29:171:25:546:334:41
6:52
-0:04
25K
15.53 mi11:46:021:42:396:3616:45
6:55
+0:03
30K
18.64 mi12:08:292:05:066:4322:27
7:14
+0:19
20M
20.00 mi12:18:412:15:186:4610:12
7:30
+0:16
21M
21.00 mi12:26:282:23:056:497:47
7:47
+0:17
35K
21.75 mi12:31:492:28:266:505:21
7:09
-0:38
23M
23.00 mi12:41:202:37:576:529:31
7:36
+0:27
24M
24.00 mi12:48:312:45:086:537:11
7:11
-0:25
40K
24.85 mi12:54:522:51:296:546:21
7:26
+0:15
25.2M
25.20 mi12:57:322:54:096:552:40
7:44
+0:18
Finish
26.22 mi13:04:513:01:286:567:19
7:11
-0:33

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

6:17 /mi

Average Pace

6:56 /mi

Slowest Pace

7:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:39

57% of race

Time at Steady Pace

42:18

23% of race

Time at Slower Pace

36:31

20% of race

Average Pace: 6:55 /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 mi10:22:5519:326:1719:32
6:17
#2369
10K
6.21 mi10:42:5039:276:2119:55
6:25
#2722
15K
9.32 mi11:03:0459:416:2420:14
6:31
#3029
20K
12.43 mi11:24:361:21:136:3221:32
6:56
#3740
Half
13.11 mi11:29:171:25:546:334:41
6:52
#3843
25K
15.53 mi11:46:021:42:396:3616:45
6:55
#4048
30K
18.64 mi12:08:292:05:066:4322:27
7:14
#4403
20M
20.00 mi12:18:412:15:186:4610:12
7:30
#4646
21M
21.00 mi12:26:282:23:056:497:47
7:47
#4716
35K
21.75 mi12:31:492:28:266:505:21
7:09
#4752
23M
23.00 mi12:41:202:37:576:529:31
7:36
#4947
24M
24.00 mi12:48:312:45:086:537:11
7:11
#4977
40K
24.85 mi12:54:522:51:296:546:21
7:26
#5008
25.2M
25.20 mi12:57:322:54:096:552:40
7:44
#4989
Finish
26.22 mi13:04:513:01:286:567:19
7:11
#5007
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2369225822583645(Top 13%)3443(Top 21%)3443(Top 61%)
10K6.21 mi3.10 mi2722-3532593-3352593-3353105(Top 11%)2954(Top 18%)2954(Top 52%)
15K9.32 mi3.11 mi3029-3072887-2942887-2943645(Top 13%)3443(Top 21%)3443(Top 61%)
20K12.43 mi3.11 mi3740-7113530-6433530-6436405(Top 23%)5745(Top 36%)5745(Top 102%)
Half13.11 mi0.68 mi3843-1033620-903620-906575(Top 23%)5871(Top 36%)5871(Top 104%)
25K15.53 mi2.42 mi4048-2053805-1853805-1855712(Top 20%)5165(Top 32%)5165(Top 92%)
30K18.64 mi3.11 mi4403-3554114-3094114-3096030(Top 21%)5327(Top 33%)5327(Top 94%)
20M20.00 mi1.36 mi4646-2434308-1944308-1947015(Top 25%)5833(Top 36%)5833(Top 103%)
21M21.00 mi1.00 mi4716-704365-574365-576061(Top 21%)5087(Top 32%)5087(Top 90%)
35K21.75 mi0.75 mi4752-364385-204385-206236(Top 22%)5209(Top 32%)5209(Top 92%)
23M23.00 mi1.25 mi4947-1954537-1524537-1527217(Top 25%)5697(Top 35%)5697(Top 101%)
24M24.00 mi1.00 mi4977-304551-144551-145684(Top 20%)4709(Top 29%)4709(Top 83%)
40K24.85 mi0.85 mi5008-314569-184569-186330(Top 22%)5039(Top 31%)5039(Top 89%)
25.2M25.20 mi0.35 mi4989+194551+184551+184455(Top 16%)3733(Top 23%)3733(Top 66%)
Finish26.22 mi1.02 mi5007-184552-14552-16879(Top 24%)5245(Top 33%)5245(Top 93%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3645

Males

3443

M18-39

3443

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

3105

Males

2954

M18-39

2954

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3645

Males

3443

M18-39

3443

15K→20K

9.3 - 12.4 mi

Top 23%
×5stories
+106ft-86ft

Overall

6405

Males

5745

M18-39

5745

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+19ft-37ft

Overall

6575

Males

5871

M18-39

5871

Half→25K

13.1 - 15.5 mi

Top 20%
×4stories
+66ft-88ft

Overall

5712

Males

5165

M18-39

5165

25K→30K

15.5 - 18.6 mi

Top 21%
×9stories
+181ft-148ft

Overall

6030

Males

5327

M18-39

5327

30K→20M

18.6 - 20.0 mi

Top 25%
×5stories
+64ft-50ft

Overall

7015

Males

5833

M18-39

5833

20M→21M

20.0 - 21.0 mi

Top 21%
×8stories
+106ft-24ft

Overall

6061

Males

5087

M18-39

5087

21M→35K

21.0 - 21.8 mi

Top 22%
×7stories
+17ft-86ft

Overall

6236

Males

5209

M18-39

5209

35K→23M

21.8 - 23.0 mi

Top 25%
×5stories
+23ft-63ft

Overall

7217

Males

5697

M18-39

5697

23M→24M

23.0 - 24.0 mi

Top 20%
×6stories
+12ft-82ft

Overall

5684

Males

4709

M18-39

4709

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

6330

Males

5039

M18-39

5039

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4455

Males

3733

M18-39

3733

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2stories
+22ft-21ft

Overall

6879

Males

5245

M18-39

5245

Passing Analysis

Category:
Athletes Passed
466
Passed By
3104
Net Change
-2638
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2369
5K → 10K27380-353#2369#2722
10K → 15K17324-307#2722#3029
15K → 20K11722-711#3029#3740
20K → Half1104-103#3740#3843
Half → 25K36241-205#3843#4048
25K → 30K61416-355#4048#4403
30K → 20M22265-243#4403#4646
20M → 21M51121-70#4646#4716
21M → 35K4177-36#4716#4752
35K → 23M41236-195#4752#4947
23M → 24M5080-30#4947#4977
24M → 40K4172-31#4977#5008
40K → 25.2M3314+19#5008#4989
25.2M → Finish3452-18#4989#5007
TOTALS4663104-2638
📊

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