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BOSTON MARATHON 2025

Melanie Kassel

Bib: 18038•F

BC

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 39%
Gender (Female)
#0 / 12228
Top 23%
Masters (Masters Women)
#0 / 6759
Top 10%
Division (F50-54)
#0 / 1303
Top 5%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:34
Rank: #12997
Start → 5K
7:35/mi
23:34 split
10K· 6.21 mi
46:18
Rank: #11716 (+1281)
5K → 10K
7:19/mi
22:44 split
15K· 9.32 mi
1:09:07
Rank: #11214 (+502)
10K → 15K
7:21/mi
22:49 split
20K· 12.43 mi
1:32:10
Rank: #10903 (+311)
15K → 20K
7:25/mi
23:03 split
Half· 13.11 mi
1:37:13
Rank: #10889 (+14)
20K → Half
7:24/mi
5:03 split
25K· 15.53 mi
1:55:52
Rank: #10973 (-84)
Half → 25K
7:42/mi
18:39 split
30K· 18.64 mi
2:20:48
Rank: #11060 (-87)
25K → 30K
8:02/mi
24:56 split
20M
2:31:48
Rank: #11004 (+56)
30K → 20M
8:06/mi
11:00 split
21M
2:40:32
Rank: #11029 (-25)
20M → 21M
8:44/mi
8:44 split
35K· 21.75 mi
2:46:26
Rank: #11013 (+16)
21M → 35K
7:53/mi
5:54 split
23M
2:56:29
Rank: #10931 (+82)
35K → 23M
8:02/mi
10:03 split
24M
3:04:31
Rank: #10918 (+13)
23M → 24M
8:02/mi
8:02 split
40K· 24.85 mi
3:11:38
Rank: #10947 (-29)
24M → 40K
8:19/mi
7:07 split
25.2M
3:14:49
Rank: #10960 (-13)
40K → 25.2M
9:14/mi
3:11 split
Finish· 26.22 mi
3:23:15
Rank: #11105 (-145)
25.2M → Finish
8:17/mi
8:26 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:13
Pace7:25 /mi
2nd Half
Distance13.11 mi
Time1:46:02
Pace8:05 /mi
📊Positive Split: 9.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:2923:347:3523:34
7:35
-
10K
6.21 mi11:37:1346:187:2722:44
7:19
-0:16
15K
9.32 mi12:00:021:09:077:2522:49
7:21
+0:02
20K
12.43 mi12:23:051:32:107:2523:03
7:25
+0:04
Half
13.11 mi12:28:081:37:137:255:03
7:24
-0:01
25K
15.53 mi12:46:471:55:527:2818:39
7:42
+0:18
30K
18.64 mi13:11:432:20:487:3324:56
8:02
+0:20
20M
20.00 mi13:22:432:31:487:3511:00
8:06
+0:04
21M
21.00 mi13:31:272:40:327:398:44
8:44
+0:38
35K
21.75 mi13:37:212:46:267:395:54
7:53
-0:51
23M
23.00 mi13:47:242:56:297:4010:03
8:02
+0:09
24M
24.00 mi13:55:263:04:317:418:02
8:02
0:00
40K
24.85 mi14:02:333:11:387:437:07
8:19
+0:17
25.2M
25.20 mi14:05:443:14:497:443:11
9:14
+0:55
Finish
26.22 mi14:14:103:23:157:458:26
8:17
-0:57

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

7:19 /mi

Average Pace

7:45 /mi

Slowest Pace

9:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:52

57% of race

Time at Steady Pace

1:08:21

34% of race

Time at Slower Pace

19:02

9% of race

Average Pace: 7:45 /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 mi11:14:2923:347:3523:34
7:35
#12997
10K
6.21 mi11:37:1346:187:2722:44
7:19
#11716
15K
9.32 mi12:00:021:09:077:2522:49
7:21
#11214
20K
12.43 mi12:23:051:32:107:2523:03
7:25
#10903
Half
13.11 mi12:28:081:37:137:255:03
7:24
#10889
25K
15.53 mi12:46:471:55:527:2818:39
7:42
#10973
30K
18.64 mi13:11:432:20:487:3324:56
8:02
#11060
20M
20.00 mi13:22:432:31:487:3511:00
8:06
#11004
21M
21.00 mi13:31:272:40:327:398:44
8:44
#11029
35K
21.75 mi13:37:212:46:267:395:54
7:53
#11013
23M
23.00 mi13:47:242:56:297:4010:03
8:02
#10931
24M
24.00 mi13:55:263:04:317:418:02
8:02
#10918
40K
24.85 mi14:02:333:11:387:437:07
8:19
#10947
25.2M
25.20 mi14:05:443:14:497:443:11
9:14
#10960
Finish
26.22 mi14:14:103:23:157:458:26
8:17
#11105
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi129973312331210374(Top 37%)2066(Top 17%)2066(Top 159%)
10K6.21 mi3.10 mi11716+12812654+6582654+65810505(Top 37%)2065(Top 17%)2065(Top 158%)
15K9.32 mi3.11 mi11214+5022424+2302424+23010374(Top 37%)2066(Top 17%)2066(Top 159%)
20K12.43 mi3.11 mi10903+3112289+1352289+13510081(Top 35%)2000(Top 16%)2000(Top 153%)
Half13.11 mi0.68 mi10889+142287+22287+210973(Top 39%)2415(Top 20%)2415(Top 185%)
25K15.53 mi2.42 mi10973-842375-882375-8811491(Top 40%)2840(Top 23%)2840(Top 218%)
30K18.64 mi3.11 mi11060-872497-1222497-12211578(Top 41%)3079(Top 25%)3079(Top 236%)
20M20.00 mi1.36 mi11004+562516-192516-1911087(Top 39%)2984(Top 24%)2984(Top 229%)
21M21.00 mi1.00 mi11029-252557-412557-4111898(Top 42%)3535(Top 29%)3535(Top 271%)
35K21.75 mi0.75 mi11013+162582-252582-2511479(Top 40%)3351(Top 27%)3351(Top 257%)
23M23.00 mi1.25 mi10931+822579+32579+310241(Top 36%)2859(Top 23%)2859(Top 219%)
24M24.00 mi1.00 mi10918+132612-332612-3311501(Top 40%)3563(Top 29%)3563(Top 273%)
40K24.85 mi0.85 mi10947-292669-572669-5712304(Top 43%)4073(Top 33%)4073(Top 313%)
25.2M25.20 mi0.35 mi10960-132688-192688-1913109(Top 46%)4528(Top 37%)4528(Top 348%)
Finish26.22 mi1.02 mi11105-1452800-1122800-11214772(Top 52%)5345(Top 44%)5345(Top 410%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

10374

Females

2066

F50-54

2066

5K→10K

3.1 - 6.2 mi

Top 37%
×5story building
+79ft-138ft

Overall

10505

Females

2065

F50-54

2065

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

10374

Females

2066

F50-54

2066

15K→20K

9.3 - 12.4 mi

Top 35%
×5story building
+106ft-86ft

Overall

10081

Females

2000

F50-54

2000

20K→Half

12.4 - 13.1 mi

Top 39%
×2story building
+19ft-37ft

Overall

10973

Females

2415

F50-54

2415

Half→25K

13.1 - 15.5 mi

Top 40%
×4story building
+66ft-88ft

Overall

11491

Females

2840

F50-54

2840

25K→30K

15.5 - 18.6 mi

Top 41%
×9story building
+181ft-148ft

Overall

11578

Females

3079

F50-54

3079

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

11087

Females

2984

F50-54

2984

20M→21M

20.0 - 21.0 mi

Top 42%
×8story building
+106ft-24ft

Overall

11898

Females

3535

F50-54

3535

21M→35K

21.0 - 21.8 mi

Top 40%
×7story building
+17ft-86ft

Overall

11479

Females

3351

F50-54

3351

35K→23M

21.8 - 23.0 mi

Top 36%
×5story building
+23ft-63ft

Overall

10241

Females

2859

F50-54

2859

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

11501

Females

3563

F50-54

3563

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

12304

Females

4073

F50-54

4073

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

13109

Females

4528

F50-54

4528

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2story building
+22ft-21ft

Overall

14772

Females

5345

F50-54

5345

Passing Analysis

Category:
Athletes Passed
3216
Passed By
1324
Net Change
+1892
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12997
5K → 10K129716+1281#12997#11716
10K → 15K52725+502#11716#11214
15K → 20K34938+311#11214#10903
20K → Half4228+14#10903#10889
Half → 25K145229-84#10889#10973
25K → 30K200287-87#10973#11060
30K → 20M14690+56#11060#11004
20M → 21M86111-25#11004#11029
21M → 35K6448+16#11029#11013
35K → 23M14462+82#11013#10931
23M → 24M8572+13#10931#10918
24M → 40K6594-29#10918#10947
40K → 25.2M3548-13#10947#10960
25.2M → Finish31176-145#10960#11105
TOTALS32161324+1892
📊

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