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BOSTON MARATHON 2025

Arianna Ontko

Bib: 17101•F

MI

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 31%
Gender (Female)
#0 / 12228
Top 13%
Division (F18-39)
#0 / 5469
Top 24%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:16
Rank: #9210
Start → 5K
22:16 | 7:10/mi
10K· 6.21 mi
44:52
Rank: #9641 (-431)
5K → 10K
22:36 | 7:16/mi
15K· 9.32 mi
1:07:30
Rank: #9684 (-43)
10K → 15K
22:38 | 7:17/mi
20K· 12.43 mi
1:30:14
Rank: #9512 (+172)
15K → 20K
22:44 | 7:19/mi
Half· 13.11 mi
1:35:13
Rank: #9535 (-23)
20K → Half
4:59 | 7:18/mi
25K· 15.53 mi
1:53:05
Rank: #9399 (+136)
Half → 25K
17:52 | 7:22/mi
30K· 18.64 mi
2:16:31
Rank: #9048 (+351)
25K → 30K
23:26 | 7:33/mi
20M
2:27:05
Rank: #9001 (+47)
30K → 20M
10:34 | 7:47/mi
21M
2:35:10
Rank: #8891 (+110)
20M → 21M
8:05 | 8:05/mi
35K· 21.75 mi
2:40:46
Rank: #8841 (+50)
21M → 35K
5:36 | 7:29/mi
23M
2:50:39
Rank: #8802 (+39)
35K → 23M
9:53 | 7:54/mi
24M
2:58:21
Rank: #8807 (-5)
23M → 24M
7:42 | 7:42/mi
40K· 24.85 mi
3:05:03
Rank: #8764 (+43)
24M → 40K
6:42 | 7:50/mi
25.2M
3:08:03
Rank: #8774 (-10)
40K → 25.2M
3:00 | 8:42/mi
Finish· 26.22 mi
3:15:28
Rank: #8700 (+74)
25.2M → Finish
7:25 | 7:17/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:13
Pace7:16 /mi
2nd Half
Distance13.11 mi
Time1:40:15
Pace7:39 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:12:3722:167:1022:16
7:10
-
10K
6.21 mi11:35:1344:527:1322:36
7:16
+0:06
15K
9.32 mi11:57:511:07:307:1522:38
7:17
+0:01
20K
12.43 mi12:20:351:30:147:1622:44
7:19
+0:02
Half
13.11 mi12:25:341:35:137:164:59
7:18
-0:01
25K
15.53 mi12:43:261:53:057:1717:52
7:22
+0:04
30K
18.64 mi13:06:522:16:317:1923:26
7:33
+0:11
20M
20.00 mi13:17:262:27:057:2110:34
7:47
+0:14
21M
21.00 mi13:25:312:35:107:238:05
8:05
+0:18
35K
21.75 mi13:31:072:40:467:245:36
7:29
-0:36
23M
23.00 mi13:41:002:50:397:259:53
7:54
+0:25
24M
24.00 mi13:48:422:58:217:267:42
7:42
-0:12
40K
24.85 mi13:55:243:05:037:276:42
7:50
+0:08
25.2M
25.20 mi13:58:243:08:037:283:00
8:42
+0:52
Finish
26.22 mi14:05:493:15:287:287:25
7:17
-1:25

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

7:10 /mi

Average Pace

7:28 /mi

Slowest Pace

8:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:14:55

38% of race

Time at Steady Pace

1:14:37

38% of race

Time at Slower Pace

45:56

23% of race

Average Pace: 7:27 /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 mi11:12:3722:167:1022:16
7:10
#9210
10K
6.21 mi11:35:1344:527:1322:36
7:16
#9641
15K
9.32 mi11:57:511:07:307:1522:38
7:17
#9684
20K
12.43 mi12:20:351:30:147:1622:44
7:19
#9512
Half
13.11 mi12:25:341:35:137:164:59
7:18
#9535
25K
15.53 mi12:43:261:53:057:1717:52
7:22
#9399
30K
18.64 mi13:06:522:16:317:1923:26
7:33
#9048
20M
20.00 mi13:17:262:27:057:2110:34
7:47
#9001
21M
21.00 mi13:25:312:35:107:238:05
8:05
#8891
35K
21.75 mi13:31:072:40:467:245:36
7:29
#8841
23M
23.00 mi13:41:002:50:397:259:53
7:54
#8802
24M
24.00 mi13:48:422:58:217:267:42
7:42
#8807
40K
24.85 mi13:55:243:05:037:276:42
7:50
#8764
25.2M
25.20 mi13:58:243:08:037:283:00
8:42
#8774
Finish
26.22 mi14:05:493:15:287:287:25
7:17
#8700
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9210146014609893(Top 35%)1839(Top 15%)1839(Top 34%)
10K6.21 mi3.10 mi9641-4311636-1761636-17610153(Top 36%)1890(Top 15%)1890(Top 35%)
15K9.32 mi3.11 mi9684-431688-521688-529893(Top 35%)1839(Top 15%)1839(Top 34%)
20K12.43 mi3.11 mi9512+1721647+411647+419205(Top 32%)1614(Top 13%)1614(Top 30%)
Half13.11 mi0.68 mi9535-231666-191666-1910069(Top 35%)1975(Top 16%)1975(Top 36%)
25K15.53 mi2.42 mi9399+1361628+381628+388921(Top 31%)1605(Top 13%)1605(Top 29%)
30K18.64 mi3.11 mi9048+3511532+961532+968058(Top 28%)1415(Top 12%)1415(Top 26%)
20M20.00 mi1.36 mi9001+471540-81540-88882(Top 31%)1921(Top 16%)1921(Top 35%)
21M21.00 mi1.00 mi8891+1101528+121528+127872(Top 28%)1669(Top 14%)1669(Top 31%)
35K21.75 mi0.75 mi8841+501529-11529-18544(Top 30%)1910(Top 16%)1910(Top 35%)
23M23.00 mi1.25 mi8802+391556-271556-279254(Top 33%)2370(Top 19%)2370(Top 43%)
24M24.00 mi1.00 mi8807-51595-391595-399122(Top 32%)2378(Top 19%)2378(Top 43%)
40K24.85 mi0.85 mi8764+431619-241619-249043(Top 32%)2464(Top 20%)2464(Top 45%)
25.2M25.20 mi0.35 mi8774-101639-201639-2010021(Top 35%)3008(Top 25%)3008(Top 55%)
Finish26.22 mi1.02 mi8700+741631+81631+87640(Top 27%)1912(Top 16%)1912(Top 35%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21stories
+97ft-345ft

Overall

9893

Females

1839

F18-39

1839

5K→10K

3.1 - 6.2 mi

Top 36%
×5stories
+79ft-138ft

Overall

10153

Females

1890

F18-39

1890

10K→15K

6.2 - 9.3 mi

Top 35%
×3stories
+67ft-78ft

Overall

9893

Females

1839

F18-39

1839

15K→20K

9.3 - 12.4 mi

Top 32%
×5stories
+106ft-86ft

Overall

9205

Females

1614

F18-39

1614

20K→Half

12.4 - 13.1 mi

Top 35%
×2stories
+19ft-37ft

Overall

10069

Females

1975

F18-39

1975

Half→25K

13.1 - 15.5 mi

Top 31%
×4stories
+66ft-88ft

Overall

8921

Females

1605

F18-39

1605

25K→30K

15.5 - 18.6 mi

Top 28%
×9stories
+181ft-148ft

Overall

8058

Females

1415

F18-39

1415

30K→20M

18.6 - 20.0 mi

Top 31%
×5stories
+64ft-50ft

Overall

8882

Females

1921

F18-39

1921

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

7872

Females

1669

F18-39

1669

21M→35K

21.0 - 21.8 mi

Top 30%
×7stories
+17ft-86ft

Overall

8544

Females

1910

F18-39

1910

35K→23M

21.8 - 23.0 mi

Top 33%
×5stories
+23ft-63ft

Overall

9254

Females

2370

F18-39

2370

23M→24M

23.0 - 24.0 mi

Top 32%
×6stories
+12ft-82ft

Overall

9122

Females

2378

F18-39

2378

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

9043

Females

2464

F18-39

2464

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

10021

Females

3008

F18-39

3008

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2stories
+22ft-21ft

Overall

7640

Females

1912

F18-39

1912

Passing Analysis

Category:
Athletes Passed
1960
Passed By
1448
Net Change
+510
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9210
5K → 10K95525-431#9210#9641
10K → 15K157199-43#9641#9684
15K → 20K25482+172#9684#9512
20K → Half2447-23#9512#9535
Half → 25K20872+136#9535#9399
25K → 30K40655+351#9399#9048
30K → 20M12073+47#9048#9001
20M → 21M15848+110#9001#8891
21M → 35K8232+50#8891#8841
35K → 23M13697+39#8841#8802
23M → 24M7681-5#8802#8807
24M → 40K10057+43#8807#8764
40K → 25.2M3343-10#8764#8774
25.2M → Finish11137+74#8774#8700
TOTALS19601448+510
📊

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