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BOSTON MARATHON 2025

Alyssa Starzyk

Bib: 23840•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:05
Rank: #22604
Start → 5K
28:05 | 9:02/mi
10K· 6.21 mi
57:44
Rank: #23528 (-924)
5K → 10K
29:39 | 9:33/mi
15K· 9.32 mi
1:30:06
Rank: #24491 (-963)
10K → 15K
32:22 | 10:25/mi
20K· 12.43 mi
2:02:52
Rank: #24728 (-237)
15K → 20K
32:46 | 10:33/mi
Half· 13.11 mi
2:09:43
Rank: #24737 (-9)
20K → Half
6:51 | 10:02/mi
25K· 15.53 mi
2:36:27
Rank: #24875 (-138)
Half → 25K
26:44 | 11:02/mi
30K· 18.64 mi
3:11:36
Rank: #24825 (+50)
25K → 30K
35:09 | 11:19/mi
20M
3:27:52
Rank: #24875 (-50)
30K → 20M
16:16 | 11:58/mi
21M
3:40:26
Rank: #24851 (+24)
20M → 21M
12:34 | 12:34/mi
35K· 21.75 mi
3:48:26
Rank: #24818 (+33)
21M → 35K
8:00 | 10:42/mi
23M
4:02:15
Rank: #24752 (+66)
35K → 23M
13:49 | 11:02/mi
24M
4:12:47
Rank: #24677 (+75)
23M → 24M
10:32 | 10:32/mi
40K· 24.85 mi
4:22:22
Rank: #24652 (+25)
24M → 40K
9:35 | 11:13/mi
25.2M
4:26:31
Rank: #24647 (+5)
40K → 25.2M
4:09 | 12:02/mi
Finish· 26.22 mi
4:36:48
Rank: #24596 (+51)
25.2M → Finish
10:17 | 10:05/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:09:43
Pace9:54 /mi
2nd Half
Distance13.11 mi
Time2:27:05
Pace11:13 /mi
📊Positive Split: 13.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:5828:059:0228:05
9:02
-
10K
6.21 mi11:56:3757:449:1729:39
9:33
+0:31
15K
9.32 mi12:28:591:30:069:4032:22
10:25
+0:52
20K
12.43 mi13:01:452:02:529:5332:46
10:33
+0:08
Half
13.11 mi13:08:362:09:439:546:51
10:02
-0:31
25K
15.53 mi13:35:202:36:2710:0426:44
11:02
+1:00
30K
18.64 mi14:10:293:11:3610:1735:09
11:19
+0:17
20M
20.00 mi14:26:453:27:5210:2416:16
11:58
+0:39
21M
21.00 mi14:39:193:40:2610:3012:34
12:34
+0:36
35K
21.75 mi14:47:193:48:2610:308:00
10:42
-1:52
23M
23.00 mi15:01:084:02:1510:3213:49
11:02
+0:20
24M
24.00 mi15:11:404:12:4710:3210:32
10:32
-0:30
40K
24.85 mi15:21:154:22:2210:339:35
11:13
+0:41
25.2M
25.20 mi15:25:244:26:3110:354:09
12:02
+0:49
Finish
26.22 mi15:35:414:36:4810:3410:17
10:05
-1:57

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

9:02 /mi

Average Pace

10:34 /mi

Slowest Pace

12:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:14:52

27% of race

Time at Steady Pace

2:04:13

45% of race

Time at Slower Pace

1:17:43

28% of race

Average Pace: 10:33 /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 mi11:26:5828:059:0228:05
9:02
#22604
10K
6.21 mi11:56:3757:449:1729:39
9:33
#23528
15K
9.32 mi12:28:591:30:069:4032:22
10:25
#24491
20K
12.43 mi13:01:452:02:529:5332:46
10:33
#24728
Half
13.11 mi13:08:362:09:439:546:51
10:02
#24737
25K
15.53 mi13:35:202:36:2710:0426:44
11:02
#24875
30K
18.64 mi14:10:293:11:3610:1735:09
11:19
#24825
20M
20.00 mi14:26:453:27:5210:2416:16
11:58
#24875
21M
21.00 mi14:39:193:40:2610:3012:34
12:34
#24851
35K
21.75 mi14:47:193:48:2610:308:00
10:42
#24818
23M
23.00 mi15:01:084:02:1510:3213:49
11:02
#24752
24M
24.00 mi15:11:404:12:4710:3210:32
10:32
#24677
40K
24.85 mi15:21:154:22:2210:339:35
11:13
#24652
25.2M
25.20 mi15:25:244:26:3110:354:09
12:02
#24647
Finish
26.22 mi15:35:414:36:4810:3410:17
10:05
#24596
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi226048963896325793(Top 91%)10672(Top 87%)10672(Top 819%)
10K6.21 mi3.10 mi23528-9249438-4759438-47524228(Top 85%)9824(Top 80%)9824(Top 754%)
15K9.32 mi3.11 mi24491-9639954-5169954-51625793(Top 91%)10672(Top 87%)10672(Top 819%)
20K12.43 mi3.11 mi24728-23710087-13310087-13325272(Top 89%)10414(Top 85%)10414(Top 799%)
Half13.11 mi0.68 mi24737-910088-110088-124917(Top 88%)10225(Top 84%)10225(Top 785%)
25K15.53 mi2.42 mi24875-13810190-10210190-10225242(Top 89%)10432(Top 85%)10432(Top 801%)
30K18.64 mi3.11 mi24825+5010183+710183+724574(Top 87%)10169(Top 83%)10169(Top 780%)
20M20.00 mi1.36 mi24875-5010229-4610229-4625224(Top 89%)10593(Top 87%)10593(Top 813%)
21M21.00 mi1.00 mi24851+2410227+210227+224489(Top 86%)10287(Top 84%)10287(Top 789%)
35K21.75 mi0.75 mi24818+3310215+1210215+1223584(Top 83%)9850(Top 81%)9850(Top 756%)
23M23.00 mi1.25 mi24752+6610192+2310192+2323324(Top 82%)9776(Top 80%)9776(Top 750%)
24M24.00 mi1.00 mi24677+7510170+2210170+2222936(Top 81%)9608(Top 79%)9608(Top 737%)
40K24.85 mi0.85 mi24652+2510171-110171-123595(Top 83%)9986(Top 82%)9986(Top 766%)
25.2M25.20 mi0.35 mi24647+510168+310168+323338(Top 82%)9835(Top 80%)9835(Top 755%)
Finish26.22 mi1.02 mi24596+5110152+1610152+1623209(Top 82%)9775(Top 80%)9775(Top 750%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21stories
+97ft-345ft

Overall

25793

Females

10672

F50-54

10672

5K→10K

3.1 - 6.2 mi

Top 85%
×5stories
+79ft-138ft

Overall

24228

Females

9824

F50-54

9824

10K→15K

6.2 - 9.3 mi

Top 91%
×3stories
+67ft-78ft

Overall

25793

Females

10672

F50-54

10672

15K→20K

9.3 - 12.4 mi

Top 89%
×5stories
+106ft-86ft

Overall

25272

Females

10414

F50-54

10414

20K→Half

12.4 - 13.1 mi

Top 88%
×2stories
+19ft-37ft

Overall

24917

Females

10225

F50-54

10225

Half→25K

13.1 - 15.5 mi

Top 89%
×4stories
+66ft-88ft

Overall

25242

Females

10432

F50-54

10432

25K→30K

15.5 - 18.6 mi

Top 87%
×9stories
+181ft-148ft

Overall

24574

Females

10169

F50-54

10169

30K→20M

18.6 - 20.0 mi

Top 89%
×5stories
+64ft-50ft

Overall

25224

Females

10593

F50-54

10593

20M→21M

20.0 - 21.0 mi

Top 86%
×8stories
+106ft-24ft

Overall

24489

Females

10287

F50-54

10287

21M→35K

21.0 - 21.8 mi

Top 83%
×7stories
+17ft-86ft

Overall

23584

Females

9850

F50-54

9850

35K→23M

21.8 - 23.0 mi

Top 82%
×5stories
+23ft-63ft

Overall

23324

Females

9776

F50-54

9776

23M→24M

23.0 - 24.0 mi

Top 81%
×6stories
+12ft-82ft

Overall

22936

Females

9608

F50-54

9608

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

23595

Females

9986

F50-54

9986

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

23338

Females

9835

F50-54

9835

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2stories
+22ft-21ft

Overall

23209

Females

9775

F50-54

9775

Passing Analysis

Category:
Athletes Passed
804
Passed By
2796
Net Change
-1992
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22604
5K → 10K36960-924#22604#23528
10K → 15K19982-963#23528#24491
15K → 20K73310-237#24491#24728
20K → Half2433-9#24728#24737
Half → 25K52190-138#24737#24875
25K → 30K157107+50#24875#24825
30K → 20M3989-50#24825#24875
20M → 21M6642+24#24875#24851
21M → 35K5118+33#24851#24818
35K → 23M8115+66#24818#24752
23M → 24M816+75#24752#24677
24M → 40K5530+25#24677#24652
40K → 25.2M105+5#24652#24647
25.2M → Finish609+51#24647#24596
TOTALS8042796-1992
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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