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BOSTON MARATHON 2025

Dmitry Zlotsky

Bib: 21497•M

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
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
9:33/mi
29:40
↑ 97↓ 3451.5%
10K· 6.21 mi
9:44/mi
59:54
↑ 79↓ 1380.4%
15K· 9.32 mi
9:46/mi
1:30:16
↑ 67↓ 78
20K· 12.43 mi
9:42/mi
2:00:25
↑ 106↓ 860.1%
Half· 13.11 mi
9:23/mi
2:06:49
↑ 19↓ 370.5%
25K· 15.53 mi
10:15/mi
2:31:41
↑ 66↓ 880.2%
30K· 18.64 mi
11:01/mi
3:05:54
↑ 181↓ 1480.2%
20M
10:51/mi
3:20:39
↑ 64↓ 500.2%
21M
11:23/mi
3:32:02
↑ 106↓ 241.6%
35K· 21.75 mi
9:41/mi
3:39:17
↑ 17↓ 861.7%
23M
10:12/mi
3:52:03
↑ 23↓ 630.6%
24M
10:28/mi
4:02:31
↓ 821.3%
40K· 24.85 mi
9:53/mi
4:10:58
↓ 200.3%
25.2M
10:50/mi
4:14:42
↑ 13↓ 160.2%
Finish· 26.22 mi
9:33/mi
4:24:26
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:49
Pace9:40 /mi
2nd Half
Distance13.11 mi
Time2:17:37
Pace10:30 /mi
📊Positive Split: 8.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:4329:409:3329:40
9:33
-
10K
6.21 mi11:56:5759:549:3830:14
9:44
+0:11
15K
9.32 mi12:27:191:30:169:4130:22
9:46
+0:02
20K
12.43 mi12:57:282:00:259:4130:09
9:42
-0:04
Half
13.11 mi13:03:522:06:499:406:24
9:23
-0:19
25K
15.53 mi13:28:442:31:419:4624:52
10:15
+0:52
30K
18.64 mi14:02:573:05:549:5834:13
11:01
+0:46
20M
20.00 mi14:17:423:20:3910:0214:45
10:51
-0:10
21M
21.00 mi14:29:053:32:0210:0611:23
11:23
+0:32
35K
21.75 mi14:36:203:39:1710:057:15
9:41
-1:42
23M
23.00 mi14:49:063:52:0310:0512:46
10:12
+0:31
24M
24.00 mi14:59:344:02:3110:0610:28
10:28
+0:16
40K
24.85 mi15:08:014:10:5810:068:27
9:53
-0:35
25.2M
25.20 mi15:11:454:14:4210:063:44
10:50
+0:57
Finish
26.22 mi15:21:294:24:2610:069:44
9:33
-1:17

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

9:23 /mi

Average Pace

10:06 /mi

Slowest Pace

11:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

45:48

17% of race

Time at Steady Pace

1:46:27

40% of race

Time at Slower Pace

1:52:11

42% of race

Average Pace: 10:05 /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 mi11:26:4329:409:3329:40
9:33
#24395
10K
6.21 mi11:56:5759:549:3830:14
9:44
#24573
15K
9.32 mi12:27:191:30:169:4130:22
9:46
#24542
20K
12.43 mi12:57:282:00:259:4130:09
9:42
#24276
Half
13.11 mi13:03:522:06:499:406:24
9:23
#24230
25K
15.53 mi13:28:442:31:419:4624:52
10:15
#24140
30K
18.64 mi14:02:573:05:549:5834:13
11:01
#24165
20M
20.00 mi14:17:423:20:3910:0214:45
10:51
#24078
21M
21.00 mi14:29:053:32:0210:0611:23
11:23
#23991
35K
21.75 mi14:36:203:39:1710:057:15
9:41
#23875
23M
23.00 mi14:49:063:52:0310:0512:46
10:12
#23720
24M
24.00 mi14:59:344:02:3110:0610:28
10:28
#23682
40K
24.85 mi15:08:014:10:5810:068:27
9:53
#23568
25.2M
25.20 mi15:11:454:14:4210:063:44
10:50
#23507
Finish
26.22 mi15:21:294:24:2610:069:44
9:33
#23436
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi24395144301443024491(Top 86%)14476(Top 90%)14476(Top 1150%)
10K6.21 mi3.10 mi24573-17814523-9314523-9324690(Top 87%)14564(Top 90%)14564(Top 1157%)
15K9.32 mi3.11 mi24542+3114499+2414499+2424491(Top 86%)14476(Top 90%)14476(Top 1150%)
20K12.43 mi3.11 mi24276+26614367+13214367+13223502(Top 83%)14015(Top 87%)14015(Top 1113%)
Half13.11 mi0.68 mi24230+4614341+2614341+2623182(Top 82%)13873(Top 86%)13873(Top 1102%)
25K15.53 mi2.42 mi24140+9014294+4714294+4723841(Top 84%)14122(Top 88%)14122(Top 1122%)
30K18.64 mi3.11 mi24165-2514285+914285+924018(Top 85%)14085(Top 87%)14085(Top 1119%)
20M20.00 mi1.36 mi24078+8714221+6414221+6423282(Top 82%)13654(Top 85%)13654(Top 1085%)
21M21.00 mi1.00 mi23991+8714162+5914162+5922348(Top 79%)13130(Top 82%)13130(Top 1043%)
35K21.75 mi0.75 mi23875+11614103+5914103+5920978(Top 74%)12440(Top 77%)12440(Top 988%)
23M23.00 mi1.25 mi23720+15514013+9014013+9021104(Top 74%)12446(Top 77%)12446(Top 989%)
24M24.00 mi1.00 mi23682+3813979+3413979+3422716(Top 80%)13169(Top 82%)13169(Top 1046%)
40K24.85 mi0.85 mi23568+11413904+7513904+7520074(Top 71%)11831(Top 73%)11831(Top 940%)
25.2M25.20 mi0.35 mi23507+6113867+3713867+3720111(Top 71%)11853(Top 74%)11853(Top 941%)
Finish26.22 mi1.02 mi23436+7113821+4613821+4621364(Top 75%)12470(Top 77%)12470(Top 990%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21story building
+97ft-345ft

Overall

24491

Males

14476

M60-64

14476

5K→10K

3.1 - 6.2 mi

Top 87%
×5story building
+79ft-138ft

Overall

24690

Males

14564

M60-64

14564

10K→15K

6.2 - 9.3 mi

Top 86%
×3story building
+67ft-78ft

Overall

24491

Males

14476

M60-64

14476

15K→20K

9.3 - 12.4 mi

Top 83%
×5story building
+106ft-86ft

Overall

23502

Males

14015

M60-64

14015

20K→Half

12.4 - 13.1 mi

Top 82%
×2story building
+19ft-37ft

Overall

23182

Males

13873

M60-64

13873

Half→25K

13.1 - 15.5 mi

Top 84%
×4story building
+66ft-88ft

Overall

23841

Males

14122

M60-64

14122

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

24018

Males

14085

M60-64

14085

30K→20M

18.6 - 20.0 mi

Top 82%
×5story building
+64ft-50ft

Overall

23282

Males

13654

M60-64

13654

20M→21M

20.0 - 21.0 mi

Top 79%
×8story building
+106ft-24ft

Overall

22348

Males

13130

M60-64

13130

21M→35K

21.0 - 21.8 mi

Top 74%
×7story building
+17ft-86ft

Overall

20978

Males

12440

M60-64

12440

35K→23M

21.8 - 23.0 mi

Top 74%
×5story building
+23ft-63ft

Overall

21104

Males

12446

M60-64

12446

23M→24M

23.0 - 24.0 mi

Top 80%
×6story building
+12ft-82ft

Overall

22716

Males

13169

M60-64

13169

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

20074

Males

11831

M60-64

11831

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

20111

Males

11853

M60-64

11853

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2story building
+22ft-21ft

Overall

21364

Males

12470

M60-64

12470

Passing Analysis

Category:
Athletes Passed
1779
Passed By
820
Net Change
+959
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24395
5K → 10K140318-178#24395#24573
10K → 15K158127+31#24573#24542
15K → 20K28923+266#24542#24276
20K → Half504+46#24276#24230
Half → 25K15363+90#24230#24140
25K → 30K147172-25#24140#24165
30K → 20M11730+87#24165#24078
20M → 21M11225+87#24078#23991
21M → 35K1182+116#23991#23875
35K → 23M1638+155#23875#23720
23M → 24M6426+38#23720#23682
24M → 40K1217+114#23682#23568
40K → 25.2M632+61#23568#23507
25.2M → Finish8413+71#23507#23436
TOTALS1779820+959
📊

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