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BOSTON MARATHON 2025

Alex Posatskiy

Bib: 6695•M

ON

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 10%
Gender (Male)
#0 / 16105
Top 17%
Division (M18-39)
#0 / 5642
Top 38%
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
6:24/mi
19:53
↑ 97↓ 3451.5%
10K· 6.21 mi
6:31/mi
40:08
↑ 79↓ 1380.4%
15K· 9.32 mi
6:29/mi
1:00:16
↑ 67↓ 78
20K· 12.43 mi
6:31/mi
1:20:30
↑ 106↓ 860.1%
Half· 13.11 mi
6:31/mi
1:24:57
↑ 19↓ 370.5%
25K· 15.53 mi
6:36/mi
1:40:56
↑ 66↓ 880.2%
30K· 18.64 mi
6:47/mi
2:02:02
↑ 181↓ 1480.2%
20M
6:45/mi
2:11:13
↑ 64↓ 500.2%
21M
7:08/mi
2:18:21
↑ 106↓ 241.6%
35K· 21.75 mi
6:44/mi
2:23:23
↑ 17↓ 861.7%
23M
6:43/mi
2:31:47
↑ 23↓ 630.6%
24M
6:38/mi
2:38:25
↓ 821.3%
40K· 24.85 mi
6:45/mi
2:44:11
↓ 200.3%
25.2M
7:21/mi
2:46:43
↑ 13↓ 160.2%
Finish· 26.22 mi
6:41/mi
2:53:32
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:57
Pace6:29 /mi
2nd Half
Distance13.11 mi
Time1:28:35
Pace6:45 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:2519:536:2419:53
6:24
-
10K
6.21 mi10:45:4040:086:2820:15
6:31
+0:07
15K
9.32 mi11:05:481:00:166:2820:08
6:29
-0:02
20K
12.43 mi11:26:021:20:306:2920:14
6:31
+0:02
Half
13.11 mi11:30:291:24:576:294:27
6:31
0:00
25K
15.53 mi11:46:281:40:566:3015:59
6:36
+0:05
30K
18.64 mi12:07:342:02:026:3321:06
6:47
+0:11
20M
20.00 mi12:16:452:11:136:349:11
6:45
-0:02
21M
21.00 mi12:23:532:18:216:357:08
7:08
+0:23
35K
21.75 mi12:28:552:23:236:365:02
6:44
-0:24
23M
23.00 mi12:37:192:31:476:368:24
6:43
-0:01
24M
24.00 mi12:43:572:38:256:366:38
6:38
-0:05
40K
24.85 mi12:49:432:44:116:365:46
6:45
+0:07
25.2M
25.20 mi12:52:152:46:436:372:32
7:21
+0:36
Finish
26.22 mi12:59:042:53:326:376:49
6:41
-0:40

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

6:24 /mi

Average Pace

6:37 /mi

Slowest Pace

7:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:43:52

94% of race

Time at Steady Pace

9:40

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:37 /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 mi10:25:2519:536:2419:53
6:24
#3112
10K
6.21 mi10:45:4040:086:2820:15
6:31
#3465
15K
9.32 mi11:05:481:00:166:2820:08
6:29
#3422
20K
12.43 mi11:26:021:20:306:2920:14
6:31
#3342
Half
13.11 mi11:30:291:24:576:294:27
6:31
#3369
25K
15.53 mi11:46:281:40:566:3015:59
6:36
#3361
30K
18.64 mi12:07:342:02:026:3321:06
6:47
#3306
20M
20.00 mi12:16:452:11:136:349:11
6:45
#3211
21M
21.00 mi12:23:532:18:216:357:08
7:08
#3156
35K
21.75 mi12:28:552:23:236:365:02
6:44
#3159
23M
23.00 mi12:37:192:31:476:368:24
6:43
#3039
24M
24.00 mi12:43:572:38:256:366:38
6:38
#2992
40K
24.85 mi12:49:432:44:116:365:46
6:45
#2932
25.2M
25.20 mi12:52:152:46:436:372:32
7:21
#2912
Finish
26.22 mi12:59:042:53:326:376:49
6:41
#2911
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3112295629563433(Top 12%)3253(Top 20%)3253(Top 58%)
10K6.21 mi3.10 mi3465-3533289-3333289-3333853(Top 14%)3630(Top 23%)3630(Top 64%)
15K9.32 mi3.11 mi3422+433249+403249+403433(Top 12%)3253(Top 20%)3253(Top 58%)
20K12.43 mi3.11 mi3342+803175+743175+743190(Top 11%)3025(Top 19%)3025(Top 54%)
Half13.11 mi0.68 mi3369-273199-243199-243759(Top 13%)3539(Top 22%)3539(Top 63%)
25K15.53 mi2.42 mi3361+83194+53194+53397(Top 12%)3206(Top 20%)3206(Top 57%)
30K18.64 mi3.11 mi3306+553131+633131+633379(Top 12%)3151(Top 20%)3151(Top 56%)
20M20.00 mi1.36 mi3211+953043+883043+882710(Top 10%)2539(Top 16%)2539(Top 45%)
21M21.00 mi1.00 mi3156+552989+542989+542819(Top 10%)2613(Top 16%)2613(Top 46%)
35K21.75 mi0.75 mi3159-32990-12990-13634(Top 13%)3281(Top 20%)3281(Top 58%)
23M23.00 mi1.25 mi3039+1202875+1152875+1152286(Top 8%)2129(Top 13%)2129(Top 38%)
24M24.00 mi1.00 mi2992+472830+452830+452629(Top 9%)2412(Top 15%)2412(Top 43%)
40K24.85 mi0.85 mi2932+602772+582772+582564(Top 9%)2332(Top 14%)2332(Top 41%)
25.2M25.20 mi0.35 mi2912+202753+192753+192688(Top 9%)2390(Top 15%)2390(Top 42%)
Finish26.22 mi1.02 mi2911+12748+52748+53775(Top 13%)3263(Top 20%)3263(Top 58%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21story building
+97ft-345ft

Overall

3433

Males

3253

M18-39

3253

5K→10K

3.1 - 6.2 mi

Top 14%
×5story building
+79ft-138ft

Overall

3853

Males

3630

M18-39

3630

10K→15K

6.2 - 9.3 mi

Top 12%
×3story building
+67ft-78ft

Overall

3433

Males

3253

M18-39

3253

15K→20K

9.3 - 12.4 mi

Top 11%
×5story building
+106ft-86ft

Overall

3190

Males

3025

M18-39

3025

20K→Half

12.4 - 13.1 mi

Top 13%
×2story building
+19ft-37ft

Overall

3759

Males

3539

M18-39

3539

Half→25K

13.1 - 15.5 mi

Top 12%
×4story building
+66ft-88ft

Overall

3397

Males

3206

M18-39

3206

25K→30K

15.5 - 18.6 mi

Top 12%
×9story building
+181ft-148ft

Overall

3379

Males

3151

M18-39

3151

30K→20M

18.6 - 20.0 mi

Top 10%
×5story building
+64ft-50ft

Overall

2710

Males

2539

M18-39

2539

20M→21M

20.0 - 21.0 mi

Top 10%
×8story building
+106ft-24ft

Overall

2819

Males

2613

M18-39

2613

21M→35K

21.0 - 21.8 mi

Top 13%
×7story building
+17ft-86ft

Overall

3634

Males

3281

M18-39

3281

35K→23M

21.8 - 23.0 mi

Top 8%
×5story building
+23ft-63ft

Overall

2286

Males

2129

M18-39

2129

23M→24M

23.0 - 24.0 mi

Top 9%
×6story building
+12ft-82ft

Overall

2629

Males

2412

M18-39

2412

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2564

Males

2332

M18-39

2332

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2688

Males

2390

M18-39

2390

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2story building
+22ft-21ft

Overall

3775

Males

3263

M18-39

3263

Passing Analysis

Category:
Athletes Passed
1044
Passed By
843
Net Change
+201
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3112
5K → 10K35388-353#3112#3465
10K → 15K11875+43#3465#3422
15K → 20K13555+80#3422#3342
20K → Half835-27#3342#3369
Half → 25K7062+8#3369#3361
25K → 30K13782+55#3361#3306
30K → 20M10510+95#3306#3211
20M → 21M8429+55#3211#3156
21M → 35K3336-3#3156#3159
35K → 23M13111+120#3159#3039
23M → 24M6013+47#3039#2992
24M → 40K7212+60#2992#2932
40K → 25.2M233+20#2932#2912
25.2M → Finish3332+1#2912#2911
TOTALS1044843+201
📊

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