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BOSTON MARATHON 2025

Lena Josifi

Bib: 13340•F

IL

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 50%
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
23:23
Rank: #12490
Start → 5K
23:23 | 7:32/mi
10K· 6.21 mi
47:07
Rank: #12877 (-387)
5K → 10K
23:44 | 7:38/mi
15K· 9.32 mi
1:10:48
Rank: #12834 (+43)
10K → 15K
23:41 | 7:37/mi
20K· 12.43 mi
1:35:06
Rank: #12951 (-117)
15K → 20K
24:18 | 7:49/mi
Half· 13.11 mi
1:40:21
Rank: #12953 (-2)
20K → Half
5:15 | 7:42/mi
25K· 15.53 mi
1:59:37
Rank: #13025 (-72)
Half → 25K
19:16 | 7:57/mi
30K· 18.64 mi
2:29:39
Rank: #14949 (-1924)
25K → 30K
30:02 | 9:40/mi
20M
2:43:57
Rank: #15850 (-901)
30K → 20M
14:18 | 10:31/mi
21M
2:54:15
Rank: #16068 (-218)
20M → 21M
10:18 | 10:18/mi
35K· 21.75 mi
3:03:02
Rank: #16727 (-659)
21M → 35K
8:47 | 11:44/mi
23M
3:15:51
Rank: #17114 (-387)
35K → 23M
12:49 | 10:14/mi
24M
3:25:27
Rank: #17293 (-179)
23M → 24M
9:36 | 9:36/mi
40K· 24.85 mi
3:32:58
Rank: #17200 (+93)
24M → 40K
7:31 | 8:47/mi
25.2M
3:36:30
Rank: #17224 (-24)
40K → 25.2M
3:32 | 10:15/mi
Finish· 26.22 mi
3:45:00
Rank: #17144 (+80)
25.2M → Finish
8:30 | 8:20/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:21
Pace7:39 /mi
2nd Half
Distance13.11 mi
Time2:04:39
Pace9:31 /mi
📊Positive Split: 24.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:1723:237:3223:23
7:32
-
10K
6.21 mi11:16:0147:077:3523:44
7:38
+0:06
15K
9.32 mi11:39:421:10:487:3623:41
7:37
-0:01
20K
12.43 mi12:04:001:35:067:3924:18
7:49
+0:12
Half
13.11 mi12:09:151:40:217:395:15
7:42
-0:07
25K
15.53 mi12:28:311:59:377:4219:16
7:57
+0:15
30K
18.64 mi12:58:332:29:398:0230:02
9:40
+1:43
20M
20.00 mi13:12:512:43:578:1214:18
10:31
+0:51
21M
21.00 mi13:23:092:54:158:1810:18
10:18
-0:13
35K
21.75 mi13:31:563:03:028:258:47
11:44
+1:26
23M
23.00 mi13:44:453:15:518:3112:49
10:14
-1:30
24M
24.00 mi13:54:213:25:278:349:36
9:36
-0:38
40K
24.85 mi14:01:523:32:588:347:31
8:47
-0:49
25.2M
25.20 mi14:05:243:36:308:353:32
10:15
+1:28
Finish
26.22 mi14:13:543:45:008:358:30
8:20
-1:55

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

7:32 /mi

Average Pace

8:35 /mi

Slowest Pace

11:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:37

53% of race

Time at Steady Pace

16:01

7% of race

Time at Slower Pace

1:29:22

40% of race

Average Pace: 8:35 /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 mi10:52:1723:237:3223:23
7:32
#12490
10K
6.21 mi11:16:0147:077:3523:44
7:38
#12877
15K
9.32 mi11:39:421:10:487:3623:41
7:37
#12834
20K
12.43 mi12:04:001:35:067:3924:18
7:49
#12951
Half
13.11 mi12:09:151:40:217:395:15
7:42
#12953
25K
15.53 mi12:28:311:59:377:4219:16
7:57
#13025
30K
18.64 mi12:58:332:29:398:0230:02
9:40
#14949
20M
20.00 mi13:12:512:43:578:1214:18
10:31
#15850
21M
21.00 mi13:23:092:54:158:1810:18
10:18
#16068
35K
21.75 mi13:31:563:03:028:258:47
11:44
#16727
23M
23.00 mi13:44:453:15:518:3112:49
10:14
#17114
24M
24.00 mi13:54:213:25:278:349:36
9:36
#17293
40K
24.85 mi14:01:523:32:588:347:31
8:47
#17200
25.2M
25.20 mi14:05:243:36:308:353:32
10:15
#17224
Finish
26.22 mi14:13:543:45:008:358:30
8:20
#17144
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi124903067306712829(Top 45%)3354(Top 27%)3354(Top 61%)
10K6.21 mi3.10 mi12877-3873279-2123279-21213388(Top 47%)3605(Top 29%)3605(Top 66%)
15K9.32 mi3.11 mi12834+433291-123291-1212829(Top 45%)3354(Top 27%)3354(Top 61%)
20K12.43 mi3.11 mi12951-1173416-1253416-12513470(Top 47%)3803(Top 31%)3803(Top 70%)
Half13.11 mi0.68 mi12953-23422-63422-613457(Top 47%)3768(Top 31%)3768(Top 69%)
25K15.53 mi2.42 mi13025-723491-693491-6913513(Top 48%)3953(Top 32%)3953(Top 72%)
30K18.64 mi3.11 mi14949-19244642-11514642-115120593(Top 73%)7986(Top 65%)7986(Top 146%)
20M20.00 mi1.36 mi15850-9015184-5425184-54222502(Top 79%)9154(Top 75%)9154(Top 167%)
21M21.00 mi1.00 mi16068-2185336-1525336-15219378(Top 68%)7538(Top 62%)7538(Top 138%)
35K21.75 mi0.75 mi16727-6595729-3935729-39325478(Top 90%)10832(Top 89%)10832(Top 198%)
23M23.00 mi1.25 mi17114-3876005-2766005-27621247(Top 75%)8677(Top 71%)8677(Top 159%)
24M24.00 mi1.00 mi17293-1796134-1296134-12919988(Top 70%)8070(Top 66%)8070(Top 148%)
40K24.85 mi0.85 mi17200+936103+316103+3115173(Top 53%)5617(Top 46%)5617(Top 103%)
25.2M25.20 mi0.35 mi17224-246129-266129-2618114(Top 64%)7189(Top 59%)7189(Top 131%)
Finish26.22 mi1.02 mi17144+806100+296100+2915224(Top 54%)5609(Top 46%)5609(Top 103%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21stories
+97ft-345ft

Overall

12829

Females

3354

F18-39

3354

5K→10K

3.1 - 6.2 mi

Top 47%
×5stories
+79ft-138ft

Overall

13388

Females

3605

F18-39

3605

10K→15K

6.2 - 9.3 mi

Top 45%
×3stories
+67ft-78ft

Overall

12829

Females

3354

F18-39

3354

15K→20K

9.3 - 12.4 mi

Top 47%
×5stories
+106ft-86ft

Overall

13470

Females

3803

F18-39

3803

20K→Half

12.4 - 13.1 mi

Top 47%
×2stories
+19ft-37ft

Overall

13457

Females

3768

F18-39

3768

Half→25K

13.1 - 15.5 mi

Top 48%
×4stories
+66ft-88ft

Overall

13513

Females

3953

F18-39

3953

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

20593

Females

7986

F18-39

7986

30K→20M

18.6 - 20.0 mi

Top 79%
×5stories
+64ft-50ft

Overall

22502

Females

9154

F18-39

9154

20M→21M

20.0 - 21.0 mi

Top 68%
×8stories
+106ft-24ft

Overall

19378

Females

7538

F18-39

7538

21M→35K

21.0 - 21.8 mi

Top 90%
×7stories
+17ft-86ft

Overall

25478

Females

10832

F18-39

10832

35K→23M

21.8 - 23.0 mi

Top 75%
×5stories
+23ft-63ft

Overall

21247

Females

8677

F18-39

8677

23M→24M

23.0 - 24.0 mi

Top 70%
×6stories
+12ft-82ft

Overall

19988

Females

8070

F18-39

8070

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

15173

Females

5617

F18-39

5617

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

18114

Females

7189

F18-39

7189

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2stories
+22ft-21ft

Overall

15224

Females

5609

F18-39

5609

Passing Analysis

Category:
Athletes Passed
1139
Passed By
5793
Net Change
-4654
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12490
5K → 10K144531-387#12490#12877
10K → 15K220177+43#12877#12834
15K → 20K163280-117#12834#12951
20K → Half3335-2#12951#12953
Half → 25K133205-72#12953#13025
25K → 30K301954-1924#13025#14949
30K → 20M15916-901#14949#15850
20M → 21M53271-218#15850#16068
21M → 35K4663-659#16068#16727
35K → 23M42429-387#16727#17114
23M → 24M45224-179#17114#17293
24M → 40K11522+93#17293#17200
40K → 25.2M3155-24#17200#17224
25.2M → Finish11131+80#17224#17144
TOTALS11395793-4654
📊

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