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BOSTON MARATHON 2025

Inez Janiak-Molecka

Bib: 31652•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
28:11
Rank: #22736
Start → 5K
9:04/mi
28:11 split
10K· 6.21 mi
56:22
Rank: #22716 (+20)
5K → 10K
9:04/mi
28:11 split
15K· 9.32 mi
1:23:52
Rank: #22273 (+443)
10K → 15K
8:51/mi
27:30 split
20K· 12.43 mi
1:51:30
Rank: #21814 (+459)
15K → 20K
8:54/mi
27:38 split
Half· 13.11 mi
1:57:47
Rank: #21848 (-34)
20K → Half
9:13/mi
6:17 split
25K· 15.53 mi
2:21:26
Rank: #22019 (-171)
Half → 25K
9:45/mi
23:39 split
30K· 18.64 mi
2:53:14
Rank: #22139 (-120)
25K → 30K
10:14/mi
31:48 split
20M
3:07:12
Rank: #22117 (+22)
30K → 20M
10:17/mi
13:58 split
21M
3:19:40
Rank: #22281 (-164)
20M → 21M
12:28/mi
12:28 split
35K· 21.75 mi
3:27:24
Rank: #22297 (-16)
21M → 35K
10:20/mi
7:44 split
23M
3:40:45
Rank: #22282 (+15)
35K → 23M
10:40/mi
13:21 split
24M
3:51:02
Rank: #22269 (+13)
23M → 24M
10:17/mi
10:17 split
40K· 24.85 mi
3:59:42
Rank: #22223 (+46)
24M → 40K
10:08/mi
8:40 split
25.2M
4:03:49
Rank: #22231 (-8)
40K → 25.2M
11:56/mi
4:07 split
Finish· 26.22 mi
4:13:45
Rank: #22203 (+28)
25.2M → Finish
9:45/mi
9:56 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:47
Pace8:59 /mi
2nd Half
Distance13.11 mi
Time2:15:58
Pace10:22 /mi
📊Positive Split: 15.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:2028:119:0428:11
9:04
-
10K
6.21 mi12:20:3156:229:0428:11
9:04
0:00
15K
9.32 mi12:48:011:23:529:0027:30
8:51
-0:13
20K
12.43 mi13:15:391:51:308:5827:38
8:54
+0:03
Half
13.11 mi13:21:561:57:478:596:17
9:13
+0:19
25K
15.53 mi13:45:352:21:269:0623:39
9:45
+0:32
30K
18.64 mi14:17:232:53:149:1831:48
10:14
+0:29
20M
20.00 mi14:31:213:07:129:2213:58
10:17
+0:03
21M
21.00 mi14:43:493:19:409:3012:28
12:28
+2:11
35K
21.75 mi14:51:333:27:249:327:44
10:20
-2:08
23M
23.00 mi15:04:543:40:459:3613:21
10:40
+0:20
24M
24.00 mi15:15:113:51:029:3810:17
10:17
-0:23
40K
24.85 mi15:23:513:59:429:398:40
10:08
-0:09
25.2M
25.20 mi15:27:584:03:499:414:07
11:56
+1:48
Finish
26.22 mi15:37:544:13:459:419:56
9:45
-2:11

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

8:51 /mi

Average Pace

9:41 /mi

Slowest Pace

12:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:47

46% of race

Time at Steady Pace

1:46:02

42% of race

Time at Slower Pace

29:56

12% of race

Average Pace: 9:41 /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 mi11:52:2028:119:0428:11
9:04
#22736
10K
6.21 mi12:20:3156:229:0428:11
9:04
#22716
15K
9.32 mi12:48:011:23:529:0027:30
8:51
#22273
20K
12.43 mi13:15:391:51:308:5827:38
8:54
#21814
Half
13.11 mi13:21:561:57:478:596:17
9:13
#21848
25K
15.53 mi13:45:352:21:269:0623:39
9:45
#22019
30K
18.64 mi14:17:232:53:149:1831:48
10:14
#22139
20M
20.00 mi14:31:213:07:129:2213:58
10:17
#22117
21M
21.00 mi14:43:493:19:409:3012:28
12:28
#22281
35K
21.75 mi14:51:333:27:249:327:44
10:20
#22297
23M
23.00 mi15:04:543:40:459:3613:21
10:40
#22282
24M
24.00 mi15:15:113:51:029:3810:17
10:17
#22269
40K
24.85 mi15:23:513:59:429:398:40
10:08
#22223
25.2M
25.20 mi15:27:584:03:499:414:07
11:56
#22231
Finish
26.22 mi15:37:544:13:459:419:56
9:45
#22203
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi227369035903521302(Top 75%)8166(Top 67%)8166(Top 149%)
10K6.21 mi3.10 mi22716+209003+329003+3222706(Top 80%)8973(Top 73%)8973(Top 164%)
15K9.32 mi3.11 mi22273+4438740+2638740+26321302(Top 75%)8166(Top 67%)8166(Top 149%)
20K12.43 mi3.11 mi21814+4598501+2398501+23920452(Top 72%)7744(Top 63%)7744(Top 142%)
Half13.11 mi0.68 mi21848-348519-188519-1822660(Top 80%)8964(Top 73%)8964(Top 164%)
25K15.53 mi2.42 mi22019-1718616-978616-9722657(Top 80%)9011(Top 74%)9011(Top 165%)
30K18.64 mi3.11 mi22139-1208701-858701-8522271(Top 78%)8921(Top 73%)8921(Top 163%)
20M20.00 mi1.36 mi22117+228704-38704-321809(Top 77%)8794(Top 72%)8794(Top 161%)
21M21.00 mi1.00 mi22281-1648823-1198823-11924364(Top 86%)10213(Top 84%)10213(Top 187%)
35K21.75 mi0.75 mi22297-168847-248847-2422800(Top 80%)9436(Top 77%)9436(Top 173%)
23M23.00 mi1.25 mi22282+158872-258872-2522436(Top 79%)9306(Top 76%)9306(Top 170%)
24M24.00 mi1.00 mi22269+138894-228894-2222207(Top 78%)9240(Top 76%)9240(Top 169%)
40K24.85 mi0.85 mi22223+468874+208874+2020913(Top 74%)8622(Top 71%)8622(Top 158%)
25.2M25.20 mi0.35 mi22231-88887-138887-1323121(Top 81%)9719(Top 79%)9719(Top 178%)
Finish26.22 mi1.02 mi22203+288896-98896-922100(Top 78%)9208(Top 75%)9208(Top 168%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21story building
+97ft-345ft

Overall

21302

Females

8166

F18-39

8166

5K→10K

3.1 - 6.2 mi

Top 80%
×5story building
+79ft-138ft

Overall

22706

Females

8973

F18-39

8973

10K→15K

6.2 - 9.3 mi

Top 75%
×3story building
+67ft-78ft

Overall

21302

Females

8166

F18-39

8166

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

20452

Females

7744

F18-39

7744

20K→Half

12.4 - 13.1 mi

Top 80%
×2story building
+19ft-37ft

Overall

22660

Females

8964

F18-39

8964

Half→25K

13.1 - 15.5 mi

Top 80%
×4story building
+66ft-88ft

Overall

22657

Females

9011

F18-39

9011

25K→30K

15.5 - 18.6 mi

Top 78%
×9story building
+181ft-148ft

Overall

22271

Females

8921

F18-39

8921

30K→20M

18.6 - 20.0 mi

Top 77%
×5story building
+64ft-50ft

Overall

21809

Females

8794

F18-39

8794

20M→21M

20.0 - 21.0 mi

Top 86%
×8story building
+106ft-24ft

Overall

24364

Females

10213

F18-39

10213

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

22800

Females

9436

F18-39

9436

35K→23M

21.8 - 23.0 mi

Top 79%
×5story building
+23ft-63ft

Overall

22436

Females

9306

F18-39

9306

23M→24M

23.0 - 24.0 mi

Top 78%
×6story building
+12ft-82ft

Overall

22207

Females

9240

F18-39

9240

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

20913

Females

8622

F18-39

8622

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

23121

Females

9719

F18-39

9719

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

22100

Females

9208

F18-39

9208

Passing Analysis

Category:
Athletes Passed
1931
Passed By
1398
Net Change
+533
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22736
5K → 10K253233+20#22736#22716
10K → 15K47633+443#22716#22273
15K → 20K47516+459#22273#21814
20K → Half2357-34#21814#21848
Half → 25K98269-171#21848#22019
25K → 30K147267-120#22019#22139
30K → 20M9573+22#22139#22117
20M → 21M45209-164#22117#22281
21M → 35K3349-16#22281#22297
35K → 23M8469+15#22297#22282
23M → 24M6350+13#22282#22269
24M → 40K7024+46#22269#22223
40K → 25.2M1725-8#22223#22231
25.2M → Finish5224+28#22231#22203
TOTALS19311398+533
📊

Passing Visuals

Category:
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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