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BOSTON MARATHON 2025

Sky Izzo

Bib: 24501•F

NM

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

Start
0:00:00
Race begins
5K· 3.11 mi
34:39
Rank: #27719
Start → 5K
34:39 | 11:09/mi
10K· 6.21 mi
1:12:38
Rank: #27943 (-224)
5K → 10K
37:59 | 12:14/mi
15K· 9.32 mi
1:49:15
Rank: #27824 (+119)
10K → 15K
36:37 | 11:47/mi
20K· 12.43 mi
2:26:24
Rank: #27658 (+166)
15K → 20K
37:09 | 11:57/mi
Half· 13.11 mi
2:34:31
Rank: #27639 (+19)
20K → Half
8:07 | 11:54/mi
25K· 15.53 mi
3:06:03
Rank: #27577 (+62)
Half → 25K
31:32 | 13:00/mi
30K· 18.64 mi
3:50:19
Rank: #27607 (-30)
25K → 30K
44:16 | 14:15/mi
20M
4:09:37
Rank: #27599 (+8)
30K → 20M
19:18 | 14:12/mi
21M
4:25:29
Rank: #27621 (-22)
20M → 21M
15:52 | 15:52/mi
35K· 21.75 mi
4:34:50
Rank: #27606 (+15)
21M → 35K
9:21 | 12:30/mi
23M
4:50:44
Rank: #27537 (+69)
35K → 23M
15:54 | 12:42/mi
24M
5:04:01
Rank: #27543 (-6)
23M → 24M
13:17 | 13:17/mi
40K· 24.85 mi
5:15:06
Rank: #27504 (+39)
24M → 40K
11:05 | 12:58/mi
25.2M
5:20:11
Rank: #27505 (-1)
40K → 25.2M
5:05 | 14:44/mi
Finish· 26.22 mi
5:32:25
Rank: #27493 (+12)
25.2M → Finish
12:14 | 12:00/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:34:31
Pace11:47 /mi
2nd Half
Distance13.11 mi
Time2:57:54
Pace13:34 /mi
📊Positive Split: 15.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:58:2134:3911:0934:39
11:09
-
10K
6.21 mi12:36:201:12:3811:4137:59
12:14
+1:05
15K
9.32 mi13:12:571:49:1511:4336:37
11:47
-0:27
20K
12.43 mi13:50:062:26:2411:4737:09
11:57
+0:10
Half
13.11 mi13:58:132:34:3111:478:07
11:54
-0:03
25K
15.53 mi14:29:453:06:0311:5931:32
13:00
+1:06
30K
18.64 mi15:14:013:50:1912:2144:16
14:15
+1:15
20M
20.00 mi15:33:194:09:3712:2919:18
14:12
-0:03
21M
21.00 mi15:49:114:25:2912:3915:52
15:52
+1:40
35K
21.75 mi15:58:324:34:5012:389:21
12:30
-3:22
23M
23.00 mi16:14:264:50:4412:3815:54
12:42
+0:12
24M
24.00 mi16:27:435:04:0112:4013:17
13:17
+0:35
40K
24.85 mi16:38:485:15:0612:4111:05
12:58
-0:19
25.2M
25.20 mi16:43:535:20:1112:425:05
14:44
+1:46
Finish
26.22 mi16:56:075:32:2512:4112:14
12:00
-2:44

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

11:09 /mi

Average Pace

12:41 /mi

Slowest Pace

15:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:46

39% of race

Time at Steady Pace

1:59:08

36% of race

Time at Slower Pace

1:24:31

25% of race

Average Pace: 12:41 /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 mi11:58:2134:3911:0934:39
11:09
#27719
10K
6.21 mi12:36:201:12:3811:4137:59
12:14
#27943
15K
9.32 mi13:12:571:49:1511:4336:37
11:47
#27824
20K
12.43 mi13:50:062:26:2411:4737:09
11:57
#27658
Half
13.11 mi13:58:132:34:3111:478:07
11:54
#27639
25K
15.53 mi14:29:453:06:0311:5931:32
13:00
#27577
30K
18.64 mi15:14:013:50:1912:2144:16
14:15
#27607
20M
20.00 mi15:33:194:09:3712:2919:18
14:12
#27599
21M
21.00 mi15:49:114:25:2912:3915:52
15:52
#27621
35K
21.75 mi15:58:324:34:5012:389:21
12:30
#27606
23M
23.00 mi16:14:264:50:4412:3815:54
12:42
#27537
24M
24.00 mi16:27:435:04:0112:4013:17
13:17
#27543
40K
24.85 mi16:38:485:15:0612:4111:05
12:58
#27504
25.2M
25.20 mi16:43:535:20:1112:425:05
14:44
#27505
Finish
26.22 mi16:56:075:32:2512:4112:14
12:00
#27493
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi27719117791177927483(Top 97%)11672(Top 95%)11672(Top 213%)
10K6.21 mi3.10 mi27943-22411925-14611925-14628055(Top 99%)12011(Top 98%)12011(Top 220%)
15K9.32 mi3.11 mi27824+11911861+6411861+6427483(Top 97%)11672(Top 95%)11672(Top 213%)
20K12.43 mi3.11 mi27658+16611770+9111770+9127073(Top 95%)11436(Top 94%)11436(Top 209%)
Half13.11 mi0.68 mi27639+1911760+1011760+1027371(Top 96%)11627(Top 95%)11627(Top 213%)
25K15.53 mi2.42 mi27577+6211722+3811722+3827299(Top 96%)11595(Top 95%)11595(Top 212%)
30K18.64 mi3.11 mi27607-3011759-3711759-3727682(Top 97%)11885(Top 97%)11885(Top 217%)
20M20.00 mi1.36 mi27599+811763-411763-427425(Top 97%)11777(Top 96%)11777(Top 215%)
21M21.00 mi1.00 mi27621-2211784-2111784-2127751(Top 98%)11929(Top 98%)11929(Top 218%)
35K21.75 mi0.75 mi27606+1511779+511779+526450(Top 93%)11308(Top 92%)11308(Top 207%)
23M23.00 mi1.25 mi27537+6911742+3711742+3726039(Top 92%)11115(Top 91%)11115(Top 203%)
24M24.00 mi1.00 mi27543-611751-911751-927130(Top 96%)11712(Top 96%)11712(Top 214%)
40K24.85 mi0.85 mi27504+3911727+2411727+2426257(Top 92%)11274(Top 92%)11274(Top 206%)
25.2M25.20 mi0.35 mi27505-111733-611733-626921(Top 95%)11625(Top 95%)11625(Top 213%)
Finish26.22 mi1.02 mi27493+1211731+211731+226796(Top 94%)11530(Top 94%)11530(Top 211%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×21stories
+97ft-345ft

Overall

27483

Females

11672

F18-39

11672

5K→10K

3.1 - 6.2 mi

Top 99%
×5stories
+79ft-138ft

Overall

28055

Females

12011

F18-39

12011

10K→15K

6.2 - 9.3 mi

Top 97%
×3stories
+67ft-78ft

Overall

27483

Females

11672

F18-39

11672

15K→20K

9.3 - 12.4 mi

Top 95%
×5stories
+106ft-86ft

Overall

27073

Females

11436

F18-39

11436

20K→Half

12.4 - 13.1 mi

Top 96%
×2stories
+19ft-37ft

Overall

27371

Females

11627

F18-39

11627

Half→25K

13.1 - 15.5 mi

Top 96%
×4stories
+66ft-88ft

Overall

27299

Females

11595

F18-39

11595

25K→30K

15.5 - 18.6 mi

Top 97%
×9stories
+181ft-148ft

Overall

27682

Females

11885

F18-39

11885

30K→20M

18.6 - 20.0 mi

Top 97%
×5stories
+64ft-50ft

Overall

27425

Females

11777

F18-39

11777

20M→21M

20.0 - 21.0 mi

Top 98%
×8stories
+106ft-24ft

Overall

27751

Females

11929

F18-39

11929

21M→35K

21.0 - 21.8 mi

Top 93%
×7stories
+17ft-86ft

Overall

26450

Females

11308

F18-39

11308

35K→23M

21.8 - 23.0 mi

Top 92%
×5stories
+23ft-63ft

Overall

26039

Females

11115

F18-39

11115

23M→24M

23.0 - 24.0 mi

Top 96%
×6stories
+12ft-82ft

Overall

27130

Females

11712

F18-39

11712

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

26257

Females

11274

F18-39

11274

40K→25.2M

24.9 - 25.2 mi

Top 95%
×1story
+13ft-16ft

Overall

26921

Females

11625

F18-39

11625

25.2M→Finish

25.2 - 26.2 mi

Top 94%
×2stories
+22ft-21ft

Overall

26796

Females

11530

F18-39

11530

Passing Analysis

Category:
Athletes Passed
735
Passed By
509
Net Change
+226
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27719
5K → 10K27251-224#27719#27943
10K → 15K13617+119#27943#27824
15K → 20K17711+166#27824#27658
20K → Half289+19#27658#27639
Half → 25K9432+62#27639#27577
25K → 30K4979-30#27577#27607
30K → 20M3426+8#27607#27599
20M → 21M1537-22#27599#27621
21M → 35K216+15#27621#27606
35K → 23M690+69#27606#27537
23M → 24M1521-6#27537#27543
24M → 40K445+39#27543#27504
40K → 25.2M89-1#27504#27505
25.2M → Finish186+12#27505#27493
TOTALS735509+226
📊

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