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BOSTON MARATHON 2025

Alexandra Kolomatis

Bib: 25920•F

NH

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
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
10:10/mi
31:36
↑ 97↓ 3451.5%
10K· 6.21 mi
10:07/mi
1:03:01
↑ 79↓ 1380.4%
15K· 9.32 mi
10:05/mi
1:34:20
↑ 67↓ 78
20K· 12.43 mi
10:50/mi
2:07:59
↑ 106↓ 860.1%
Half· 13.11 mi
10:45/mi
2:15:19
↑ 19↓ 370.5%
25K· 15.53 mi
13:09/mi
2:47:11
↑ 66↓ 880.2%
30K· 18.64 mi
12:39/mi
3:26:28
↑ 181↓ 1480.2%
20M
9:17/mi
3:39:05
↑ 64↓ 500.2%
21M
10:38/mi
3:49:43
↑ 106↓ 241.6%
35K· 21.75 mi
9:31/mi
3:56:50
↑ 17↓ 861.7%
23M
9:53/mi
4:09:12
↑ 23↓ 630.6%
24M
10:09/mi
4:19:21
↓ 821.3%
40K· 24.85 mi
10:05/mi
4:27:58
↓ 200.3%
25.2M
11:13/mi
4:31:50
↑ 13↓ 160.2%
Finish· 26.22 mi
10:03/mi
4:42:04
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:15:19
Pace10:19 /mi
2nd Half
Distance13.11 mi
Time2:26:45
Pace11:12 /mi
📊Positive Split: 8.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:2831:3610:1031:36
10:10
-
10K
6.21 mi12:22:531:03:0110:0831:25
10:07
-0:03
15K
9.32 mi12:54:121:34:2010:0731:19
10:05
-0:02
20K
12.43 mi13:27:512:07:5910:1833:39
10:50
+0:45
Half
13.11 mi13:35:112:15:1910:197:20
10:45
-0:05
25K
15.53 mi14:07:032:47:1110:4631:52
13:09
+2:24
30K
18.64 mi14:46:203:26:2811:0539:17
12:39
-0:30
20M
20.00 mi14:58:573:39:0510:5712:37
9:17
-3:22
21M
21.00 mi15:09:353:49:4310:5610:38
10:38
+1:21
35K
21.75 mi15:16:423:56:5010:537:07
9:31
-1:07
23M
23.00 mi15:29:044:09:1210:5012:22
9:53
+0:22
24M
24.00 mi15:39:134:19:2110:4810:09
10:09
+0:16
40K
24.85 mi15:47:504:27:5810:478:37
10:05
-0:04
25.2M
25.20 mi15:51:424:31:5010:473:52
11:13
+1:08
Finish
26.22 mi16:01:564:42:0410:4610:14
10:03
-1:10

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

9:17 /mi

Average Pace

10:46 /mi

Slowest Pace

13:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

19:44

7% of race

Time at Steady Pace

2:26:20

52% of race

Time at Slower Pace

1:56:00

41% of race

Average Pace: 10:45 /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 mi11:51:2831:3610:1031:36
10:10
#25989
10K
6.21 mi12:22:531:03:0110:0831:25
10:07
#25744
15K
9.32 mi12:54:121:34:2010:0731:19
10:05
#25575
20K
12.43 mi13:27:512:07:5910:1833:39
10:50
#25608
Half
13.11 mi13:35:112:15:1910:197:20
10:45
#25648
25K
15.53 mi14:07:032:47:1110:4631:52
13:09
#26138
30K
18.64 mi14:46:203:26:2811:0539:17
12:39
#26192
20M
20.00 mi14:58:573:39:0510:5712:37
9:17
#25825
21M
21.00 mi15:09:353:49:4310:5610:38
10:38
#25605
35K
21.75 mi15:16:423:56:5010:537:07
9:31
#25486
23M
23.00 mi15:29:044:09:1210:5012:22
9:53
#25292
24M
24.00 mi15:39:134:19:2110:4810:09
10:09
#25177
40K
24.85 mi15:47:504:27:5810:478:37
10:05
#25083
25.2M
25.20 mi15:51:424:31:5010:473:52
11:13
#25027
Finish
26.22 mi16:01:564:42:0410:4610:14
10:03
#24996
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25989107511075125152(Top 89%)10308(Top 84%)10308(Top 188%)
10K6.21 mi3.10 mi25744+24510628+12310628+12325549(Top 90%)10553(Top 86%)10553(Top 193%)
15K9.32 mi3.11 mi25575+16910542+8610542+8625152(Top 89%)10308(Top 84%)10308(Top 188%)
20K12.43 mi3.11 mi25608-3310566-2410566-2425759(Top 91%)10674(Top 87%)10674(Top 195%)
Half13.11 mi0.68 mi25648-4010591-2510591-2526153(Top 92%)10905(Top 89%)10905(Top 199%)
25K15.53 mi2.42 mi26138-49010863-27210863-27227389(Top 96%)11645(Top 95%)11645(Top 213%)
30K18.64 mi3.11 mi26192-5410929-6610929-6626309(Top 93%)11128(Top 91%)11128(Top 203%)
20M20.00 mi1.36 mi25825+36710746+18310746+18318195(Top 64%)6835(Top 56%)6835(Top 125%)
21M21.00 mi1.00 mi25605+22010640+10610640+10620382(Top 72%)8128(Top 66%)8128(Top 149%)
35K21.75 mi0.75 mi25486+11910583+5710583+5720347(Top 72%)8171(Top 67%)8171(Top 149%)
23M23.00 mi1.25 mi25292+19410488+9510488+9520041(Top 71%)8082(Top 66%)8082(Top 148%)
24M24.00 mi1.00 mi25177+11510435+5310435+5321782(Top 77%)9031(Top 74%)9031(Top 165%)
40K24.85 mi0.85 mi25083+9410390+4510390+4520680(Top 73%)8506(Top 70%)8506(Top 156%)
25.2M25.20 mi0.35 mi25027+5610371+1910371+1921194(Top 75%)8777(Top 72%)8777(Top 160%)
Finish26.22 mi1.02 mi24996+3110357+1410357+1423037(Top 81%)9685(Top 79%)9685(Top 177%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21story building
+97ft-345ft

Overall

25152

Females

10308

F18-39

10308

5K→10K

3.1 - 6.2 mi

Top 90%
×5story building
+79ft-138ft

Overall

25549

Females

10553

F18-39

10553

10K→15K

6.2 - 9.3 mi

Top 89%
×3story building
+67ft-78ft

Overall

25152

Females

10308

F18-39

10308

15K→20K

9.3 - 12.4 mi

Top 91%
×5story building
+106ft-86ft

Overall

25759

Females

10674

F18-39

10674

20K→Half

12.4 - 13.1 mi

Top 92%
×2story building
+19ft-37ft

Overall

26153

Females

10905

F18-39

10905

Half→25K

13.1 - 15.5 mi

Top 96%
×4story building
+66ft-88ft

Overall

27389

Females

11645

F18-39

11645

25K→30K

15.5 - 18.6 mi

Top 93%
×9story building
+181ft-148ft

Overall

26309

Females

11128

F18-39

11128

30K→20M

18.6 - 20.0 mi

Top 64%
×5story building
+64ft-50ft

Overall

18195

Females

6835

F18-39

6835

20M→21M

20.0 - 21.0 mi

Top 72%
×8story building
+106ft-24ft

Overall

20382

Females

8128

F18-39

8128

21M→35K

21.0 - 21.8 mi

Top 72%
×7story building
+17ft-86ft

Overall

20347

Females

8171

F18-39

8171

35K→23M

21.8 - 23.0 mi

Top 71%
×5story building
+23ft-63ft

Overall

20041

Females

8082

F18-39

8082

23M→24M

23.0 - 24.0 mi

Top 77%
×6story building
+12ft-82ft

Overall

21782

Females

9031

F18-39

9031

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

20680

Females

8506

F18-39

8506

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

21194

Females

8777

F18-39

8777

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2story building
+22ft-21ft

Overall

23037

Females

9685

F18-39

9685

Passing Analysis

Category:
Athletes Passed
1977
Passed By
984
Net Change
+993
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25989
5K → 10K32984+245#25989#25744
10K → 15K22051+169#25744#25575
15K → 20K110143-33#25575#25608
20K → Half1151-40#25608#25648
Half → 25K10500-490#25648#26138
25K → 30K83137-54#26138#26192
30K → 20M3670+367#26192#25825
20M → 21M2200+220#25825#25605
21M → 35K1190+119#25605#25486
35K → 23M1951+194#25486#25292
23M → 24M1183+115#25292#25177
24M → 40K973+94#25177#25083
40K → 25.2M571+56#25083#25027
25.2M → Finish4110+31#25027#24996
TOTALS1977984+993
📊

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