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BOSTON MARATHON 2025

Alexandra Matsis

Bib: 26670•F

NH

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 42%
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
7:37/mi
23:40
↑ 97↓ 3451.5%
10K· 6.21 mi
7:42/mi
47:34
↑ 79↓ 1380.4%
15K· 9.32 mi
7:43/mi
1:11:32
↑ 67↓ 78
20K· 12.43 mi
7:56/mi
1:36:12
↑ 106↓ 860.1%
Half· 13.11 mi
7:52/mi
1:41:34
↑ 19↓ 370.5%
25K· 15.53 mi
8:16/mi
2:01:37
↑ 66↓ 880.2%
30K· 18.64 mi
8:45/mi
2:28:47
↑ 181↓ 1480.2%
20M
10:18/mi
2:42:47
↑ 64↓ 500.2%
21M
10:13/mi
2:53:00
↑ 106↓ 241.6%
35K· 21.75 mi
8:25/mi
2:59:18
↑ 17↓ 861.7%
23M
8:54/mi
3:10:26
↑ 23↓ 630.6%
24M
9:30/mi
3:19:56
↓ 821.3%
40K· 24.85 mi
8:43/mi
3:27:23
↓ 200.3%
25.2M
9:08/mi
3:30:32
↑ 13↓ 160.2%
Finish· 26.22 mi
8:04/mi
3:38:45
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:34
Pace7:45 /mi
2nd Half
Distance13.11 mi
Time1:57:11
Pace8:56 /mi
📊Positive Split: 15.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:39:1923:407:3723:40
7:37
-
10K
6.21 mi12:03:1347:347:3923:54
7:42
+0:05
15K
9.32 mi12:27:111:11:327:4023:58
7:43
+0:01
20K
12.43 mi12:51:511:36:127:4424:40
7:56
+0:13
Half
13.11 mi12:57:131:41:347:455:22
7:52
-0:04
25K
15.53 mi13:17:162:01:377:5020:03
8:16
+0:24
30K
18.64 mi13:44:262:28:477:5927:10
8:45
+0:29
20M
20.00 mi13:58:262:42:478:0814:00
10:18
+1:33
21M
21.00 mi14:08:392:53:008:1410:13
10:13
-0:05
35K
21.75 mi14:14:572:59:188:156:18
8:25
-1:48
23M
23.00 mi14:26:053:10:268:1711:08
8:54
+0:29
24M
24.00 mi14:35:353:19:568:209:30
9:30
+0:36
40K
24.85 mi14:43:023:27:238:217:27
8:43
-0:47
25.2M
25.20 mi14:46:113:30:328:213:09
9:08
+0:25
Finish
26.22 mi14:54:243:38:458:218:13
8:04
-1:04

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

7:37 /mi

Average Pace

8:21 /mi

Slowest Pace

10:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:34

46% of race

Time at Steady Pace

1:09:11

32% of race

Time at Slower Pace

48:00

22% of race

Average Pace: 8:21 /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 mi11:39:1923:407:3723:40
7:37
#13293
10K
6.21 mi12:03:1347:347:3923:54
7:42
#13560
15K
9.32 mi12:27:111:11:327:4023:58
7:43
#13539
20K
12.43 mi12:51:511:36:127:4424:40
7:56
#13730
Half
13.11 mi12:57:131:41:347:455:22
7:52
#13772
25K
15.53 mi13:17:162:01:377:5020:03
8:16
#14126
30K
18.64 mi13:44:262:28:477:5927:10
8:45
#14555
20M
20.00 mi13:58:262:42:478:0814:00
10:18
#15423
21M
21.00 mi14:08:392:53:008:1410:13
10:13
#15675
35K
21.75 mi14:14:572:59:188:156:18
8:25
#15619
23M
23.00 mi14:26:053:10:268:1711:08
8:54
#15586
24M
24.00 mi14:35:353:19:568:209:30
9:30
#15761
40K
24.85 mi14:43:023:27:238:217:27
8:43
#15697
25.2M
25.20 mi14:46:113:30:328:213:09
9:08
#15649
Finish
26.22 mi14:54:243:38:458:218:13
8:04
#15552
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi132933494349413663(Top 48%)3826(Top 31%)3826(Top 70%)
10K6.21 mi3.10 mi13560-2673683-1893683-18913849(Top 49%)3871(Top 32%)3871(Top 71%)
15K9.32 mi3.11 mi13539+213709-263709-2613663(Top 48%)3826(Top 31%)3826(Top 70%)
20K12.43 mi3.11 mi13730-1913860-1513860-15114464(Top 51%)4352(Top 36%)4352(Top 80%)
Half13.11 mi0.68 mi13772-423892-323892-3214882(Top 52%)4560(Top 37%)4560(Top 83%)
25K15.53 mi2.42 mi14126-3544116-2244116-22415737(Top 55%)5151(Top 42%)5151(Top 94%)
30K18.64 mi3.11 mi14555-4294419-3034419-30316265(Top 57%)5613(Top 46%)5613(Top 103%)
20M20.00 mi1.36 mi15423-8684938-5194938-51921879(Top 77%)8820(Top 72%)8820(Top 161%)
21M21.00 mi1.00 mi15675-2525123-1855123-18519085(Top 67%)7369(Top 60%)7369(Top 135%)
35K21.75 mi0.75 mi15619+565103+205103+2015021(Top 53%)5238(Top 43%)5238(Top 96%)
23M23.00 mi1.25 mi15586+335122-195122-1915644(Top 55%)5686(Top 46%)5686(Top 104%)
24M24.00 mi1.00 mi15761-1755245-1235245-12319634(Top 69%)7895(Top 65%)7895(Top 144%)
40K24.85 mi0.85 mi15697+645227+185227+1814719(Top 52%)5373(Top 44%)5373(Top 98%)
25.2M25.20 mi0.35 mi15649+485220+75220+712652(Top 45%)4331(Top 35%)4331(Top 79%)
Finish26.22 mi1.02 mi15552+975183+375183+3713354(Top 47%)4633(Top 38%)4633(Top 85%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21story building
+97ft-345ft

Overall

13663

Females

3826

F18-39

3826

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

13849

Females

3871

F18-39

3871

10K→15K

6.2 - 9.3 mi

Top 48%
×3story building
+67ft-78ft

Overall

13663

Females

3826

F18-39

3826

15K→20K

9.3 - 12.4 mi

Top 51%
×5story building
+106ft-86ft

Overall

14464

Females

4352

F18-39

4352

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

14882

Females

4560

F18-39

4560

Half→25K

13.1 - 15.5 mi

Top 55%
×4story building
+66ft-88ft

Overall

15737

Females

5151

F18-39

5151

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

16265

Females

5613

F18-39

5613

30K→20M

18.6 - 20.0 mi

Top 77%
×5story building
+64ft-50ft

Overall

21879

Females

8820

F18-39

8820

20M→21M

20.0 - 21.0 mi

Top 67%
×8story building
+106ft-24ft

Overall

19085

Females

7369

F18-39

7369

21M→35K

21.0 - 21.8 mi

Top 53%
×7story building
+17ft-86ft

Overall

15021

Females

5238

F18-39

5238

35K→23M

21.8 - 23.0 mi

Top 55%
×5story building
+23ft-63ft

Overall

15644

Females

5686

F18-39

5686

23M→24M

23.0 - 24.0 mi

Top 69%
×6story building
+12ft-82ft

Overall

19634

Females

7895

F18-39

7895

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

14719

Females

5373

F18-39

5373

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

12652

Females

4331

F18-39

4331

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2story building
+22ft-21ft

Overall

13354

Females

4633

F18-39

4633

Passing Analysis

Category:
Athletes Passed
1368
Passed By
3627
Net Change
-2259
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13293
5K → 10K182449-267#13293#13560
10K → 15K218197+21#13560#13539
15K → 20K138329-191#13539#13730
20K → Half2264-42#13730#13772
Half → 25K94448-354#13772#14126
25K → 30K135564-429#14126#14555
30K → 20M21889-868#14555#15423
20M → 21M53305-252#15423#15675
21M → 35K8024+56#15675#15619
35K → 23M12188+33#15619#15586
23M → 24M26201-175#15586#15761
24M → 40K10238+64#15761#15697
40K → 25.2M579+48#15697#15649
25.2M → Finish11922+97#15649#15552
TOTALS13683627-2259
📊

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