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BOSTON MARATHON 2025

Kathryn Dahir

Bib: 8469•F

TN

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 34%
Gender (Female)
#0 / 12228
Top 17%
Masters (Masters Women)
#0 / 6759
Top 6%
Division (F55-59)
#0 / 994
Top 1%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:47
Rank: #13568
Start → 5K
23:47 | 7:39/mi
10K· 6.21 mi
47:07
Rank: #12863 (+705)
5K → 10K
23:20 | 7:31/mi
15K· 9.32 mi
1:10:08
Rank: #12205 (+658)
10K → 15K
23:01 | 7:25/mi
20K· 12.43 mi
1:32:58
Rank: #11471 (+734)
15K → 20K
22:50 | 7:21/mi
Half· 13.11 mi
1:37:58
Rank: #11417 (+54)
20K → Half
5:00 | 7:20/mi
25K· 15.53 mi
1:55:51
Rank: #10964 (+453)
Half → 25K
17:53 | 7:23/mi
30K· 18.64 mi
2:19:23
Rank: #10378 (+586)
25K → 30K
23:32 | 7:34/mi
20M
2:29:48
Rank: #10148 (+230)
30K → 20M
10:25 | 7:40/mi
21M
2:37:57
Rank: #10011 (+137)
20M → 21M
8:09 | 8:09/mi
35K· 21.75 mi
2:43:23
Rank: #9850 (+161)
21M → 35K
5:26 | 7:16/mi
23M
2:52:57
Rank: #9671 (+179)
35K → 23M
9:34 | 7:38/mi
24M
3:00:32
Rank: #9578 (+93)
23M → 24M
7:35 | 7:35/mi
40K· 24.85 mi
3:07:09
Rank: #9497 (+81)
24M → 40K
6:37 | 7:44/mi
25.2M
3:10:05
Rank: #9473 (+24)
40K → 25.2M
2:56 | 8:30/mi
Finish· 26.22 mi
3:18:09
Rank: #9568 (-95)
25.2M → Finish
8:04 | 7:55/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:58
Pace7:28 /mi
2nd Half
Distance13.11 mi
Time1:40:11
Pace7:39 /mi
📊Positive Split: 2.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:31:2123:477:3923:47
7:39
-
10K
6.21 mi10:54:4147:077:3523:20
7:31
-0:08
15K
9.32 mi11:17:421:10:087:3123:01
7:25
-0:06
20K
12.43 mi11:40:321:32:587:2922:50
7:21
-0:04
Half
13.11 mi11:45:321:37:587:285:00
7:20
-0:01
25K
15.53 mi12:03:251:55:517:2717:53
7:23
+0:03
30K
18.64 mi12:26:572:19:237:2923:32
7:34
+0:11
20M
20.00 mi12:37:222:29:487:2910:25
7:40
+0:06
21M
21.00 mi12:45:312:37:577:318:09
8:09
+0:29
35K
21.75 mi12:50:572:43:237:315:26
7:16
-0:53
23M
23.00 mi13:00:312:52:577:319:34
7:38
+0:22
24M
24.00 mi13:08:063:00:327:317:35
7:35
-0:03
40K
24.85 mi13:14:433:07:097:326:37
7:44
+0:09
25.2M
25.20 mi13:17:393:10:057:332:56
8:30
+0:46
Finish
26.22 mi13:25:433:18:097:348:04
7:55
-0:35

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

7:16 /mi

Average Pace

7:34 /mi

Slowest Pace

8:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:04

94% of race

Time at Steady Pace

11:05

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:33 /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 mi10:31:2123:477:3923:47
7:39
#13568
10K
6.21 mi10:54:4147:077:3523:20
7:31
#12863
15K
9.32 mi11:17:421:10:087:3123:01
7:25
#12205
20K
12.43 mi11:40:321:32:587:2922:50
7:21
#11471
Half
13.11 mi11:45:321:37:587:285:00
7:20
#11417
25K
15.53 mi12:03:251:55:517:2717:53
7:23
#10964
30K
18.64 mi12:26:572:19:237:2923:32
7:34
#10378
20M
20.00 mi12:37:222:29:487:2910:25
7:40
#10148
21M
21.00 mi12:45:312:37:577:318:09
8:09
#10011
35K
21.75 mi12:50:572:43:237:315:26
7:16
#9850
23M
23.00 mi13:00:312:52:577:319:34
7:38
#9671
24M
24.00 mi13:08:063:00:327:317:35
7:35
#9578
40K
24.85 mi13:14:433:07:097:326:37
7:44
#9497
25.2M
25.20 mi13:17:393:10:057:332:56
8:30
#9473
Finish
26.22 mi13:25:433:18:097:348:04
7:55
#9568
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi135683632363210961(Top 39%)2355(Top 19%)2355(Top 237%)
10K6.21 mi3.10 mi12863+7053265+3673265+36712198(Top 43%)2923(Top 24%)2923(Top 294%)
15K9.32 mi3.11 mi12205+6582950+3152950+31510961(Top 39%)2355(Top 19%)2355(Top 237%)
20K12.43 mi3.11 mi11471+7342593+3572593+3579469(Top 33%)1722(Top 14%)1722(Top 173%)
Half13.11 mi0.68 mi11417+542565+282565+2810318(Top 36%)2098(Top 17%)2098(Top 211%)
25K15.53 mi2.42 mi10964+4532370+1952370+1958982(Top 32%)1633(Top 13%)1633(Top 164%)
30K18.64 mi3.11 mi10378+5862140+2302140+2308276(Top 29%)1504(Top 12%)1504(Top 151%)
20M20.00 mi1.36 mi10148+2302058+822058+828163(Top 29%)1609(Top 13%)1609(Top 162%)
21M21.00 mi1.00 mi10011+1372036+222036+228289(Top 29%)1848(Top 15%)1848(Top 186%)
35K21.75 mi0.75 mi9850+1611985+511985+517048(Top 25%)1321(Top 11%)1321(Top 133%)
23M23.00 mi1.25 mi9671+1791935+501935+507546(Top 27%)1637(Top 13%)1637(Top 165%)
24M24.00 mi1.00 mi9578+931938-31938-38332(Top 29%)2024(Top 17%)2024(Top 204%)
40K24.85 mi0.85 mi9497+811932+61932+68385(Top 30%)2168(Top 18%)2168(Top 218%)
25.2M25.20 mi0.35 mi9473+241941-91941-98869(Top 31%)2453(Top 20%)2453(Top 247%)
Finish26.22 mi1.02 mi9568-952032-912032-9112301(Top 43%)4071(Top 33%)4071(Top 410%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21stories
+97ft-345ft

Overall

10961

Females

2355

F55-59

2355

5K→10K

3.1 - 6.2 mi

Top 43%
×5stories
+79ft-138ft

Overall

12198

Females

2923

F55-59

2923

10K→15K

6.2 - 9.3 mi

Top 39%
×3stories
+67ft-78ft

Overall

10961

Females

2355

F55-59

2355

15K→20K

9.3 - 12.4 mi

Top 33%
×5stories
+106ft-86ft

Overall

9469

Females

1722

F55-59

1722

20K→Half

12.4 - 13.1 mi

Top 36%
×2stories
+19ft-37ft

Overall

10318

Females

2098

F55-59

2098

Half→25K

13.1 - 15.5 mi

Top 32%
×4stories
+66ft-88ft

Overall

8982

Females

1633

F55-59

1633

25K→30K

15.5 - 18.6 mi

Top 29%
×9stories
+181ft-148ft

Overall

8276

Females

1504

F55-59

1504

30K→20M

18.6 - 20.0 mi

Top 29%
×5stories
+64ft-50ft

Overall

8163

Females

1609

F55-59

1609

20M→21M

20.0 - 21.0 mi

Top 29%
×8stories
+106ft-24ft

Overall

8289

Females

1848

F55-59

1848

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

7048

Females

1321

F55-59

1321

35K→23M

21.8 - 23.0 mi

Top 27%
×5stories
+23ft-63ft

Overall

7546

Females

1637

F55-59

1637

23M→24M

23.0 - 24.0 mi

Top 29%
×6stories
+12ft-82ft

Overall

8332

Females

2024

F55-59

2024

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

8385

Females

2168

F55-59

2168

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8869

Females

2453

F55-59

2453

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2stories
+22ft-21ft

Overall

12301

Females

4071

F55-59

4071

Passing Analysis

Category:
Athletes Passed
4443*
Passed By
443
Net Change
+4000
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13568
5K → 10K76358+705#13568#12863
10K → 15K68022+658#12863#12205
15K → 20K7384+734#12205#11471
20K → Half628+54#11471#11417
Half → 25K46310+453#11417#10964
25K → 30K59711+586#10964#10378
30K → 20M24616+230#10378#10148
20M → 21M18851+137#10148#10011
21M → 35K165*4+161#10011#9850
35K → 23M19819+179#9850#9671
23M → 24M13643+93#9671#9578
24M → 40K10928+81#9578#9497
40K → 25.2M4622+24#9497#9473
25.2M → Finish52147-95#9473#9568
TOTALS4443*443+4000

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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