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BOSTON MARATHON 2025

Iuliia Bondarchuk

Bib: 17052•F

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
23:28
Rank: #12711
Start → 5K
23:28 | 7:33/mi
10K· 6.21 mi
47:39
Rank: #13672 (-961)
5K → 10K
24:11 | 7:47/mi
15K· 9.32 mi
1:13:11
Rank: #15108 (-1436)
10K → 15K
25:32 | 8:13/mi
20K· 12.43 mi
1:39:58
Rank: #16280 (-1172)
15K → 20K
26:47 | 8:37/mi
Half· 13.11 mi
1:45:27
Rank: #16256 (+24)
20K → Half
5:29 | 8:02/mi
25K· 15.53 mi
2:07:57
Rank: #17193 (-937)
Half → 25K
22:30 | 9:17/mi
30K· 18.64 mi
2:38:14
Rank: #18031 (-838)
25K → 30K
30:17 | 9:45/mi
20M
2:51:42
Rank: #18334 (-303)
30K → 20M
13:28 | 9:55/mi
21M
3:01:50
Rank: #18356 (-22)
20M → 21M
10:08 | 10:08/mi
35K· 21.75 mi
3:08:16
Rank: #18263 (+93)
21M → 35K
6:26 | 8:36/mi
23M
3:19:41
Rank: #18181 (+82)
35K → 23M
11:25 | 9:07/mi
24M
3:28:43
Rank: #18132 (+49)
23M → 24M
9:02 | 9:02/mi
40K· 24.85 mi
3:36:31
Rank: #18080 (+52)
24M → 40K
7:48 | 9:07/mi
25.2M
3:39:58
Rank: #18073 (+7)
40K → 25.2M
3:27 | 10:00/mi
Finish· 26.22 mi
3:48:48
Rank: #18046 (+27)
25.2M → Finish
8:50 | 8:40/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:27
Pace8:03 /mi
2nd Half
Distance13.11 mi
Time2:03:21
Pace9:25 /mi
📊Positive Split: 17.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:4923:287:3323:28
7:33
-
10K
6.21 mi11:38:0047:397:4024:11
7:47
+0:14
15K
9.32 mi12:03:321:13:117:5125:32
8:13
+0:26
20K
12.43 mi12:30:191:39:588:0326:47
8:37
+0:24
Half
13.11 mi12:35:481:45:278:035:29
8:02
-0:35
25K
15.53 mi12:58:182:07:578:1422:30
9:17
+1:15
30K
18.64 mi13:28:352:38:148:2930:17
9:45
+0:28
20M
20.00 mi13:42:032:51:428:3513:28
9:55
+0:10
21M
21.00 mi13:52:113:01:508:4010:08
10:08
+0:13
35K
21.75 mi13:58:373:08:168:396:26
8:36
-1:32
23M
23.00 mi14:10:023:19:418:4111:25
9:07
+0:31
24M
24.00 mi14:19:043:28:438:429:02
9:02
-0:05
40K
24.85 mi14:26:523:36:318:437:48
9:07
+0:05
25.2M
25.20 mi14:30:193:39:588:443:27
10:00
+0:53
Finish
26.22 mi14:39:093:48:488:448:50
8:40
-1:20

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

7:33 /mi

Average Pace

8:44 /mi

Slowest Pace

10:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:51:53

49% of race

Time at Steady Pace

59:35

26% of race

Time at Slower Pace

57:20

25% of race

Average Pace: 8:44 /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 mi11:13:4923:287:3323:28
7:33
#12711
10K
6.21 mi11:38:0047:397:4024:11
7:47
#13672
15K
9.32 mi12:03:321:13:117:5125:32
8:13
#15108
20K
12.43 mi12:30:191:39:588:0326:47
8:37
#16280
Half
13.11 mi12:35:481:45:278:035:29
8:02
#16256
25K
15.53 mi12:58:182:07:578:1422:30
9:17
#17193
30K
18.64 mi13:28:352:38:148:2930:17
9:45
#18031
20M
20.00 mi13:42:032:51:428:3513:28
9:55
#18334
21M
21.00 mi13:52:113:01:508:4010:08
10:08
#18356
35K
21.75 mi13:58:373:08:168:396:26
8:36
#18263
23M
23.00 mi14:10:023:19:418:4111:25
9:07
#18181
24M
24.00 mi14:19:043:28:438:429:02
9:02
#18132
40K
24.85 mi14:26:523:36:318:437:48
9:07
#18080
25.2M
25.20 mi14:30:193:39:588:443:27
10:00
#18073
Finish
26.22 mi14:39:093:48:488:448:50
8:40
#18046
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi127113176317617525(Top 62%)6033(Top 49%)6033(Top 110%)
10K6.21 mi3.10 mi13672-9613748-5723748-57214682(Top 52%)4356(Top 36%)4356(Top 80%)
15K9.32 mi3.11 mi15108-14364624-8764624-87617525(Top 62%)6033(Top 49%)6033(Top 110%)
20K12.43 mi3.11 mi16280-11725314-6905314-69018969(Top 67%)6897(Top 56%)6897(Top 126%)
Half13.11 mi0.68 mi16256+245310+45310+416277(Top 57%)5364(Top 44%)5364(Top 98%)
25K15.53 mi2.42 mi17193-9375878-5685878-56821100(Top 74%)8149(Top 67%)8149(Top 149%)
30K18.64 mi3.11 mi18031-8386416-5386416-53820832(Top 73%)8136(Top 67%)8136(Top 149%)
20M20.00 mi1.36 mi18334-3036603-1876603-18720640(Top 73%)8159(Top 67%)8159(Top 149%)
21M21.00 mi1.00 mi18356-226638-356638-3518813(Top 66%)7238(Top 59%)7238(Top 132%)
35K21.75 mi0.75 mi18263+936605+336605+3316111(Top 57%)5854(Top 48%)5854(Top 107%)
23M23.00 mi1.25 mi18181+826590+156590+1516942(Top 60%)6417(Top 52%)6417(Top 117%)
24M24.00 mi1.00 mi18132+496591-16591-117555(Top 62%)6791(Top 56%)6791(Top 124%)
40K24.85 mi0.85 mi18080+526586+56586+517000(Top 60%)6583(Top 54%)6583(Top 120%)
25.2M25.20 mi0.35 mi18073+76594-86594-817110(Top 60%)6648(Top 54%)6648(Top 122%)
Finish26.22 mi1.02 mi18046+276596-26596-217308(Top 61%)6711(Top 55%)6711(Top 123%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21stories
+97ft-345ft

Overall

17525

Females

6033

F18-39

6033

5K→10K

3.1 - 6.2 mi

Top 52%
×5stories
+79ft-138ft

Overall

14682

Females

4356

F18-39

4356

10K→15K

6.2 - 9.3 mi

Top 62%
×3stories
+67ft-78ft

Overall

17525

Females

6033

F18-39

6033

15K→20K

9.3 - 12.4 mi

Top 67%
×5stories
+106ft-86ft

Overall

18969

Females

6897

F18-39

6897

20K→Half

12.4 - 13.1 mi

Top 57%
×2stories
+19ft-37ft

Overall

16277

Females

5364

F18-39

5364

Half→25K

13.1 - 15.5 mi

Top 74%
×4stories
+66ft-88ft

Overall

21100

Females

8149

F18-39

8149

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

20832

Females

8136

F18-39

8136

30K→20M

18.6 - 20.0 mi

Top 73%
×5stories
+64ft-50ft

Overall

20640

Females

8159

F18-39

8159

20M→21M

20.0 - 21.0 mi

Top 66%
×8stories
+106ft-24ft

Overall

18813

Females

7238

F18-39

7238

21M→35K

21.0 - 21.8 mi

Top 57%
×7stories
+17ft-86ft

Overall

16111

Females

5854

F18-39

5854

35K→23M

21.8 - 23.0 mi

Top 60%
×5stories
+23ft-63ft

Overall

16942

Females

6417

F18-39

6417

23M→24M

23.0 - 24.0 mi

Top 62%
×6stories
+12ft-82ft

Overall

17555

Females

6791

F18-39

6791

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

17000

Females

6583

F18-39

6583

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

17110

Females

6648

F18-39

6648

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2stories
+22ft-21ft

Overall

17308

Females

6711

F18-39

6711

Passing Analysis

Category:
Athletes Passed
938
Passed By
6273
Net Change
-5335
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12711
5K → 10K511012-961#12711#13672
10K → 15K221458-1436#13672#15108
15K → 20K351207-1172#15108#16280
20K → Half4622+24#16280#16256
Half → 25K27964-937#16256#17193
25K → 30K63901-838#17193#18031
30K → 20M50353-303#18031#18334
20M → 21M93115-22#18334#18356
21M → 35K11118+93#18356#18263
35K → 23M14462+82#18263#18181
23M → 24M9546+49#18181#18132
24M → 40K9240+52#18132#18080
40K → 25.2M3427+7#18080#18073
25.2M → Finish7548+27#18073#18046
TOTALS9386273-5335
📊

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