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BOSTON MARATHON 2025

Andrew Glazer

Bib: 5063•M

CO

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
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
7:38/mi
23:42
↑ 97↓ 3451.5%
10K· 6.21 mi
7:34/mi
47:11
↑ 79↓ 1380.4%
15K· 9.32 mi
7:32/mi
1:10:35
↑ 67↓ 78
20K· 12.43 mi
7:44/mi
1:34:38
↑ 106↓ 860.1%
Half· 13.11 mi
7:33/mi
1:39:47
↑ 19↓ 370.5%
25K· 15.53 mi
10:00/mi
2:04:01
↑ 66↓ 880.2%
30K· 18.64 mi
8:33/mi
2:30:34
↑ 181↓ 1480.2%
20M
8:08/mi
2:41:37
↑ 64↓ 500.2%
21M
9:46/mi
2:51:23
↑ 106↓ 241.6%
35K· 21.75 mi
8:03/mi
2:57:24
↑ 17↓ 861.7%
23M
8:58/mi
3:08:38
↑ 23↓ 630.6%
24M
8:26/mi
3:17:04
↓ 821.3%
40K· 24.85 mi
9:03/mi
3:24:48
↓ 200.3%
25.2M
11:01/mi
3:28:36
↑ 13↓ 160.2%
Finish· 26.22 mi
8:19/mi
3:37:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:47
Pace7:37 /mi
2nd Half
Distance13.11 mi
Time1:57:18
Pace8:57 /mi
📊Positive Split: 17.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:0323:427:3823:42
7:38
-
10K
6.21 mi11:16:3247:117:3623:29
7:34
-0:04
15K
9.32 mi11:39:561:10:357:3423:24
7:32
-0:02
20K
12.43 mi12:03:591:34:387:3724:03
7:44
+0:12
Half
13.11 mi12:09:081:39:477:375:09
7:33
-0:11
25K
15.53 mi12:33:222:04:017:5924:14
10:00
+2:27
30K
18.64 mi12:59:552:30:348:0526:33
8:33
-1:27
20M
20.00 mi13:10:582:41:378:0511:03
8:08
-0:25
21M
21.00 mi13:20:442:51:238:109:46
9:46
+1:38
35K
21.75 mi13:26:452:57:248:096:01
8:03
-1:43
23M
23.00 mi13:37:593:08:388:1211:14
8:58
+0:55
24M
24.00 mi13:46:253:17:048:138:26
8:26
-0:32
40K
24.85 mi13:54:093:24:488:147:44
9:03
+0:37
25.2M
25.20 mi13:57:573:28:368:173:48
11:01
+1:58
Finish
26.22 mi14:06:263:37:058:178:29
8:19
-2:42

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

7:32 /mi

Average Pace

8:17 /mi

Slowest Pace

11:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:39:47

46% of race

Time at Steady Pace

1:00:32

28% of race

Time at Slower Pace

56:46

26% of race

Average Pace: 8:17 /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 mi10:53:0323:427:3823:42
7:38
#13350
10K
6.21 mi11:16:3247:117:3623:29
7:34
#12980
15K
9.32 mi11:39:561:10:357:3423:24
7:32
#12615
20K
12.43 mi12:03:591:34:387:3724:03
7:44
#12612
Half
13.11 mi12:09:081:39:477:375:09
7:33
#12584
25K
15.53 mi12:33:222:04:017:5924:14
10:00
#15413
30K
18.64 mi12:59:552:30:348:0526:33
8:33
#15335
20M
20.00 mi13:10:582:41:378:0511:03
8:08
#14989
21M
21.00 mi13:20:442:51:238:109:46
9:46
#15108
35K
21.75 mi13:26:452:57:248:096:01
8:03
#15000
23M
23.00 mi13:37:593:08:388:1211:14
8:58
#15029
24M
24.00 mi13:46:253:17:048:138:26
8:26
#14956
40K
24.85 mi13:54:093:24:488:147:44
9:03
#15036
25.2M
25.20 mi13:57:573:28:368:173:48
11:01
#15160
Finish
26.22 mi14:06:263:37:058:178:29
8:19
#15150
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi133509798979812048(Top 42%)9090(Top 56%)9090(Top 161%)
10K6.21 mi3.10 mi12980+3709620+1789620+17812634(Top 44%)9435(Top 59%)9435(Top 167%)
15K9.32 mi3.11 mi12615+3659418+2029418+20212048(Top 42%)9090(Top 56%)9090(Top 161%)
20K12.43 mi3.11 mi12612+39365+539365+5312757(Top 45%)9311(Top 58%)9311(Top 165%)
Half13.11 mi0.68 mi12584+289351+149351+1412118(Top 43%)9090(Top 56%)9090(Top 161%)
25K15.53 mi2.42 mi15413-282910527-117610527-117623242(Top 82%)13852(Top 86%)13852(Top 246%)
30K18.64 mi3.11 mi15335+7810446+8110446+8115039(Top 53%)10071(Top 63%)10071(Top 179%)
20M20.00 mi1.36 mi14989+34610251+19510251+19511337(Top 40%)8216(Top 51%)8216(Top 146%)
21M21.00 mi1.00 mi15108-11910279-2810279-2817309(Top 61%)10825(Top 67%)10825(Top 192%)
35K21.75 mi0.75 mi15000+10810220+5910220+5912535(Top 44%)8596(Top 53%)8596(Top 152%)
23M23.00 mi1.25 mi15029-2910205+1510205+1516092(Top 57%)10110(Top 63%)10110(Top 179%)
24M24.00 mi1.00 mi14956+7310134+7110134+7114088(Top 50%)9187(Top 57%)9187(Top 163%)
40K24.85 mi0.85 mi15036-8010135-110135-116543(Top 58%)10164(Top 63%)10164(Top 180%)
25.2M25.20 mi0.35 mi15160-12410173-3810173-3820641(Top 73%)12088(Top 75%)12088(Top 214%)
Finish26.22 mi1.02 mi15150+1010150+2310150+2315052(Top 53%)9502(Top 59%)9502(Top 168%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21story building
+97ft-345ft

Overall

12048

Males

9090

M18-39

9090

5K→10K

3.1 - 6.2 mi

Top 44%
×5story building
+79ft-138ft

Overall

12634

Males

9435

M18-39

9435

10K→15K

6.2 - 9.3 mi

Top 42%
×3story building
+67ft-78ft

Overall

12048

Males

9090

M18-39

9090

15K→20K

9.3 - 12.4 mi

Top 45%
×5story building
+106ft-86ft

Overall

12757

Males

9311

M18-39

9311

20K→Half

12.4 - 13.1 mi

Top 43%
×2story building
+19ft-37ft

Overall

12118

Males

9090

M18-39

9090

Half→25K

13.1 - 15.5 mi

Top 82%
×4story building
+66ft-88ft

Overall

23242

Males

13852

M18-39

13852

25K→30K

15.5 - 18.6 mi

Top 53%
×9story building
+181ft-148ft

Overall

15039

Males

10071

M18-39

10071

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

11337

Males

8216

M18-39

8216

20M→21M

20.0 - 21.0 mi

Top 61%
×8story building
+106ft-24ft

Overall

17309

Males

10825

M18-39

10825

21M→35K

21.0 - 21.8 mi

Top 44%
×7story building
+17ft-86ft

Overall

12535

Males

8596

M18-39

8596

35K→23M

21.8 - 23.0 mi

Top 57%
×5story building
+23ft-63ft

Overall

16092

Males

10110

M18-39

10110

23M→24M

23.0 - 24.0 mi

Top 50%
×6story building
+12ft-82ft

Overall

14088

Males

9187

M18-39

9187

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

16543

Males

10164

M18-39

10164

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

20641

Males

12088

M18-39

12088

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2story building
+22ft-21ft

Overall

15052

Males

9502

M18-39

9502

Passing Analysis

Category:
Athletes Passed
2345
Passed By
4145
Net Change
-1800
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13350
5K → 10K497127+370#13350#12980
10K → 15K42661+365#12980#12615
15K → 20K198195+3#12615#12612
20K → Half4416+28#12612#12584
Half → 25K82837-2829#12584#15413
25K → 30K279201+78#15413#15335
30K → 20M3515+346#15335#14989
20M → 21M76195-119#14989#15108
21M → 35K1168+108#15108#15000
35K → 23M104133-29#15000#15029
23M → 24M11845+73#15029#14956
24M → 40K40120-80#14956#15036
40K → 25.2M10134-124#15036#15160
25.2M → Finish7868+10#15160#15150
TOTALS23454145-1800
📊

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