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BOSTON MARATHON 2025

Tomasz Dara

Bib: 31673•M

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
8:40/mi
26:55
↑ 97↓ 3451.5%
10K· 6.21 mi
8:36/mi
53:37
↑ 79↓ 1380.4%
15K· 9.32 mi
9:03/mi
1:21:44
↑ 67↓ 78
20K· 12.43 mi
9:22/mi
1:50:49
↑ 106↓ 860.1%
Half· 13.11 mi
9:20/mi
1:57:11
↑ 19↓ 370.5%
25K· 15.53 mi
10:38/mi
2:22:57
↑ 66↓ 880.2%
30K· 18.64 mi
11:17/mi
2:58:00
↑ 181↓ 1480.2%
20M
10:23/mi
3:12:07
↑ 64↓ 500.2%
21M
12:15/mi
3:24:22
↑ 106↓ 241.6%
35K· 21.75 mi
11:14/mi
3:32:46
↑ 17↓ 861.7%
23M
11:29/mi
3:47:09
↑ 23↓ 630.6%
24M
11:29/mi
3:58:38
↓ 821.3%
40K· 24.85 mi
11:22/mi
4:08:21
↓ 200.3%
25.2M
11:16/mi
4:12:14
↑ 13↓ 160.2%
Finish· 26.22 mi
9:40/mi
4:22:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:11
Pace8:56 /mi
2nd Half
Distance13.11 mi
Time2:24:54
Pace11:03 /mi
📊Positive Split: 23.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:1826:558:4026:55
8:40
-
10K
6.21 mi12:17:0053:378:3826:42
8:36
-0:04
15K
9.32 mi12:45:071:21:448:4628:07
9:03
+0:27
20K
12.43 mi13:14:121:50:498:5529:05
9:22
+0:19
Half
13.11 mi13:20:341:57:118:566:22
9:20
-0:02
25K
15.53 mi13:46:202:22:579:1225:46
10:38
+1:18
30K
18.64 mi14:21:232:58:009:3335:03
11:17
+0:39
20M
20.00 mi14:35:303:12:079:3614:07
10:23
-0:54
21M
21.00 mi14:47:453:24:229:4412:15
12:15
+1:52
35K
21.75 mi14:56:093:32:469:478:24
11:14
-1:01
23M
23.00 mi15:10:323:47:099:5314:23
11:29
+0:15
24M
24.00 mi15:22:013:58:389:5711:29
11:29
0:00
40K
24.85 mi15:31:444:08:2110:009:43
11:22
-0:07
25.2M
25.20 mi15:35:374:12:1410:013:53
11:16
-0:06
Finish
26.22 mi15:45:284:22:0510:009:51
9:40
-1:36

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

8:36 /mi

Average Pace

10:00 /mi

Slowest Pace

12:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:07:02

48% of race

Time at Steady Pace

39:53

15% of race

Time at Slower Pace

1:35:10

36% of race

Average Pace: 10:00 /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 mi11:50:1826:558:4026:55
8:40
#20822
10K
6.21 mi12:17:0053:378:3826:42
8:36
#20548
15K
9.32 mi12:45:071:21:448:4628:07
9:03
#21081
20K
12.43 mi13:14:121:50:498:5529:05
9:22
#21542
Half
13.11 mi13:20:341:57:118:566:22
9:20
#21633
25K
15.53 mi13:46:202:22:579:1225:46
10:38
#22440
30K
18.64 mi14:21:232:58:009:3335:03
11:17
#22950
20M
20.00 mi14:35:303:12:079:3614:07
10:23
#22865
21M
21.00 mi14:47:453:24:229:4412:15
12:15
#22958
35K
21.75 mi14:56:093:32:469:478:24
11:14
#23026
23M
23.00 mi15:10:323:47:099:5314:23
11:29
#23129
24M
24.00 mi15:22:013:58:389:5711:29
11:29
#23217
40K
24.85 mi15:31:444:08:2110:009:43
11:22
#23238
25.2M
25.20 mi15:35:374:12:1410:013:53
11:16
#23209
Finish
26.22 mi15:45:284:22:0510:009:51
9:40
#23174
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi20822127821278222246(Top 78%)13498(Top 84%)13498(Top 239%)
10K6.21 mi3.10 mi20548+27412693+8912693+8920326(Top 72%)12619(Top 78%)12619(Top 224%)
15K9.32 mi3.11 mi21081-53312943-25012943-25022246(Top 78%)13498(Top 84%)13498(Top 239%)
20K12.43 mi3.11 mi21542-46113145-20213145-20222446(Top 79%)13553(Top 84%)13553(Top 240%)
Half13.11 mi0.68 mi21633-9113177-3213177-3223050(Top 81%)13813(Top 86%)13813(Top 245%)
25K15.53 mi2.42 mi22440-80713548-37113548-37124591(Top 87%)14461(Top 90%)14461(Top 256%)
30K18.64 mi3.11 mi22950-51013734-18613734-18624510(Top 86%)14310(Top 89%)14310(Top 254%)
20M20.00 mi1.36 mi22865+8513665+6913665+6922112(Top 78%)13097(Top 81%)13097(Top 232%)
21M21.00 mi1.00 mi22958-9313692-2713692-2724011(Top 85%)13910(Top 86%)13910(Top 247%)
35K21.75 mi0.75 mi23026-6813710-1813710-1824652(Top 87%)14184(Top 88%)14184(Top 251%)
23M23.00 mi1.25 mi23129-10313731-2113731-2124222(Top 85%)13952(Top 87%)13952(Top 247%)
24M24.00 mi1.00 mi23217-8813749-1813749-1824865(Top 88%)14235(Top 88%)14235(Top 252%)
40K24.85 mi0.85 mi23238-2113745+413745+423887(Top 84%)13715(Top 85%)13715(Top 243%)
25.2M25.20 mi0.35 mi23209+2913728+1713728+1721407(Top 75%)12496(Top 78%)12496(Top 221%)
Finish26.22 mi1.02 mi23174+3513694+3413694+3421787(Top 77%)12680(Top 79%)12680(Top 225%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21story building
+97ft-345ft

Overall

22246

Males

13498

M18-39

13498

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

20326

Males

12619

M18-39

12619

10K→15K

6.2 - 9.3 mi

Top 78%
×3story building
+67ft-78ft

Overall

22246

Males

13498

M18-39

13498

15K→20K

9.3 - 12.4 mi

Top 79%
×5story building
+106ft-86ft

Overall

22446

Males

13553

M18-39

13553

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

23050

Males

13813

M18-39

13813

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

24591

Males

14461

M18-39

14461

25K→30K

15.5 - 18.6 mi

Top 86%
×9story building
+181ft-148ft

Overall

24510

Males

14310

M18-39

14310

30K→20M

18.6 - 20.0 mi

Top 78%
×5story building
+64ft-50ft

Overall

22112

Males

13097

M18-39

13097

20M→21M

20.0 - 21.0 mi

Top 85%
×8story building
+106ft-24ft

Overall

24011

Males

13910

M18-39

13910

21M→35K

21.0 - 21.8 mi

Top 87%
×7story building
+17ft-86ft

Overall

24652

Males

14184

M18-39

14184

35K→23M

21.8 - 23.0 mi

Top 85%
×5story building
+23ft-63ft

Overall

24222

Males

13952

M18-39

13952

23M→24M

23.0 - 24.0 mi

Top 88%
×6story building
+12ft-82ft

Overall

24865

Males

14235

M18-39

14235

24M→40K

24.0 - 24.9 mi

Top 84%
×1story
+6ft-20ft

Overall

23887

Males

13715

M18-39

13715

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

21407

Males

12496

M18-39

12496

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

21787

Males

12680

M18-39

12680

Passing Analysis

Category:
Athletes Passed
1072
Passed By
3424
Net Change
-2352
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20822
5K → 10K445171+274#20822#20548
10K → 15K69602-533#20548#21081
15K → 20K89550-461#21081#21542
20K → Half11102-91#21542#21633
Half → 25K21828-807#21633#22440
25K → 30K51561-510#22440#22950
30K → 20M11732+85#22950#22865
20M → 21M43136-93#22865#22958
21M → 35K2694-68#22958#23026
35K → 23M43146-103#23026#23129
23M → 24M27115-88#23129#23217
24M → 40K4364-21#23217#23238
40K → 25.2M345+29#23238#23209
25.2M → Finish5318+35#23209#23174
TOTALS10723424-2352
📊

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