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BOSTON MARATHON 2025

Sanna-Katriina Asikainen

Bib: 23337•F

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:13
Rank: #21291
Start → 5K
27:13 | 8:46/mi
10K· 6.21 mi
54:40
Rank: #21432 (-141)
5K → 10K
27:27 | 8:50/mi
15K· 9.32 mi
1:22:30
Rank: #21539 (-107)
10K → 15K
27:50 | 8:58/mi
20K· 12.43 mi
1:50:54
Rank: #21565 (-26)
15K → 20K
28:24 | 9:08/mi
Half· 13.11 mi
1:56:57
Rank: #21553 (+12)
20K → Half
6:03 | 8:52/mi
25K· 15.53 mi
2:23:19
Rank: #22531 (-978)
Half → 25K
26:22 | 10:52/mi
30K· 18.64 mi
2:55:08
Rank: #22473 (+58)
25K → 30K
31:49 | 10:14/mi
20M
3:09:04
Rank: #22414 (+59)
30K → 20M
13:56 | 10:15/mi
21M
3:20:26
Rank: #22391 (+23)
20M → 21M
11:22 | 11:22/mi
35K· 21.75 mi
3:28:09
Rank: #22402 (-11)
21M → 35K
7:43 | 10:19/mi
23M
3:40:15
Rank: #22208 (+194)
35K → 23M
12:06 | 9:40/mi
24M
3:50:17
Rank: #22169 (+39)
23M → 24M
10:02 | 10:02/mi
40K· 24.85 mi
3:58:49
Rank: #22105 (+64)
24M → 40K
8:32 | 9:59/mi
25.2M
4:02:46
Rank: #22092 (+13)
40K → 25.2M
3:57 | 11:27/mi
Finish· 26.22 mi
4:11:42
Rank: #21955 (+137)
25.2M → Finish
8:56 | 8:46/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:57
Pace8:55 /mi
2nd Half
Distance13.11 mi
Time2:14:45
Pace10:17 /mi
📊Positive Split: 15.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:2727:138:4627:13
8:46
-
10K
6.21 mi11:52:5454:408:4827:27
8:50
+0:04
15K
9.32 mi12:20:441:22:308:5127:50
8:58
+0:08
20K
12.43 mi12:49:081:50:548:5528:24
9:08
+0:10
Half
13.11 mi12:55:111:56:578:556:03
8:52
-0:16
25K
15.53 mi13:21:332:23:199:1426:22
10:52
+2:00
30K
18.64 mi13:53:222:55:089:2431:49
10:14
-0:38
20M
20.00 mi14:07:183:09:049:2713:56
10:15
+0:01
21M
21.00 mi14:18:403:20:269:3311:22
11:22
+1:07
35K
21.75 mi14:26:233:28:099:347:43
10:19
-1:03
23M
23.00 mi14:38:293:40:159:3512:06
9:40
-0:39
24M
24.00 mi14:48:313:50:179:3610:02
10:02
+0:22
40K
24.85 mi14:57:033:58:499:378:32
9:59
-0:03
25.2M
25.20 mi15:01:004:02:469:383:57
11:27
+1:28
Finish
26.22 mi15:09:564:11:429:368:56
8:46
-2:41

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

8:46 /mi

Average Pace

9:36 /mi

Slowest Pace

11:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:53

50% of race

Time at Steady Pace

1:24:08

33% of race

Time at Slower Pace

41:41

17% of race

Average Pace: 9:36 /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 mi11:25:2727:138:4627:13
8:46
#21291
10K
6.21 mi11:52:5454:408:4827:27
8:50
#21432
15K
9.32 mi12:20:441:22:308:5127:50
8:58
#21539
20K
12.43 mi12:49:081:50:548:5528:24
9:08
#21565
Half
13.11 mi12:55:111:56:578:556:03
8:52
#21553
25K
15.53 mi13:21:332:23:199:1426:22
10:52
#22531
30K
18.64 mi13:53:222:55:089:2431:49
10:14
#22473
20M
20.00 mi14:07:183:09:049:2713:56
10:15
#22414
21M
21.00 mi14:18:403:20:269:3311:22
11:22
#22391
35K
21.75 mi14:26:233:28:099:347:43
10:19
#22402
23M
23.00 mi14:38:293:40:159:3512:06
9:40
#22208
24M
24.00 mi14:48:313:50:179:3610:02
10:02
#22169
40K
24.85 mi14:57:033:58:499:378:32
9:59
#22105
25.2M
25.20 mi15:01:004:02:469:383:57
11:27
#22092
Finish
26.22 mi15:09:564:11:429:368:56
8:46
#21955
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi212918243824321839(Top 77%)8462(Top 69%)8462(Top 649%)
10K6.21 mi3.10 mi21432-1418295-528295-5221563(Top 76%)8351(Top 68%)8351(Top 641%)
15K9.32 mi3.11 mi21539-1078330-358330-3521839(Top 77%)8462(Top 69%)8462(Top 649%)
20K12.43 mi3.11 mi21565-268356-268356-2621626(Top 76%)8387(Top 69%)8387(Top 644%)
Half13.11 mi0.68 mi21553+128351+58351+521175(Top 75%)8146(Top 67%)8146(Top 625%)
25K15.53 mi2.42 mi22531-9788880-5298880-52925011(Top 88%)10294(Top 84%)10294(Top 790%)
30K18.64 mi3.11 mi22473+588899-198899-1922284(Top 78%)8934(Top 73%)8934(Top 686%)
20M20.00 mi1.36 mi22414+598880+198880+1921711(Top 76%)8747(Top 72%)8747(Top 671%)
21M21.00 mi1.00 mi22391+238884-48884-422292(Top 78%)9135(Top 75%)9135(Top 701%)
35K21.75 mi0.75 mi22402-118903-198903-1922701(Top 80%)9400(Top 77%)9400(Top 721%)
23M23.00 mi1.25 mi22208+1948833+708833+7019307(Top 68%)7685(Top 63%)7685(Top 590%)
24M24.00 mi1.00 mi22169+398835-28835-221441(Top 75%)8835(Top 72%)8835(Top 678%)
40K24.85 mi0.85 mi22105+648816+198816+1920383(Top 72%)8363(Top 68%)8363(Top 642%)
25.2M25.20 mi0.35 mi22092+138818-28818-221879(Top 77%)9113(Top 75%)9113(Top 699%)
Finish26.22 mi1.02 mi21955+1378754+648754+6417824(Top 63%)7006(Top 57%)7006(Top 538%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21stories
+97ft-345ft

Overall

21839

Females

8462

F50-54

8462

5K→10K

3.1 - 6.2 mi

Top 76%
×5stories
+79ft-138ft

Overall

21563

Females

8351

F50-54

8351

10K→15K

6.2 - 9.3 mi

Top 77%
×3stories
+67ft-78ft

Overall

21839

Females

8462

F50-54

8462

15K→20K

9.3 - 12.4 mi

Top 76%
×5stories
+106ft-86ft

Overall

21626

Females

8387

F50-54

8387

20K→Half

12.4 - 13.1 mi

Top 75%
×2stories
+19ft-37ft

Overall

21175

Females

8146

F50-54

8146

Half→25K

13.1 - 15.5 mi

Top 88%
×4stories
+66ft-88ft

Overall

25011

Females

10294

F50-54

10294

25K→30K

15.5 - 18.6 mi

Top 78%
×9stories
+181ft-148ft

Overall

22284

Females

8934

F50-54

8934

30K→20M

18.6 - 20.0 mi

Top 76%
×5stories
+64ft-50ft

Overall

21711

Females

8747

F50-54

8747

20M→21M

20.0 - 21.0 mi

Top 78%
×8stories
+106ft-24ft

Overall

22292

Females

9135

F50-54

9135

21M→35K

21.0 - 21.8 mi

Top 80%
×7stories
+17ft-86ft

Overall

22701

Females

9400

F50-54

9400

35K→23M

21.8 - 23.0 mi

Top 68%
×5stories
+23ft-63ft

Overall

19307

Females

7685

F50-54

7685

23M→24M

23.0 - 24.0 mi

Top 75%
×6stories
+12ft-82ft

Overall

21441

Females

8835

F50-54

8835

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

20383

Females

8363

F50-54

8363

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

21879

Females

9113

F50-54

9113

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2stories
+22ft-21ft

Overall

17824

Females

7006

F50-54

7006

Passing Analysis

Category:
Athletes Passed
1590
Passed By
2254
Net Change
-664
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21291
5K → 10K221362-141#21291#21432
10K → 15K170277-107#21432#21539
15K → 20K189215-26#21539#21565
20K → Half3927+12#21565#21553
Half → 25K15993-978#21553#22531
25K → 30K212154+58#22531#22473
30K → 20M9839+59#22473#22414
20M → 21M8764+23#22414#22391
21M → 35K4051-11#22391#22402
35K → 23M1995+194#22402#22208
23M → 24M6223+39#22208#22169
24M → 40K8117+64#22169#22105
40K → 25.2M3320+13#22105#22092
25.2M → Finish1447+137#22092#21955
TOTALS15902254-664
📊

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