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BOSTON MARATHON 2025

Salla Alopaeus

Bib: 19201•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 37%
Masters (Masters Women)
#0 / 6759
Top 23%
Division (F40-44)
#0 / 1718
Top 45%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:34
Rank: #15779
Start → 5K
24:34 | 7:54/mi
10K· 6.21 mi
49:14
Rank: #15898 (-119)
5K → 10K
24:40 | 7:56/mi
15K· 9.32 mi
1:13:46
Rank: #15627 (+271)
10K → 15K
24:32 | 7:54/mi
20K· 12.43 mi
1:39:00
Rank: #15690 (-63)
15K → 20K
25:14 | 8:07/mi
Half· 13.11 mi
1:44:17
Rank: #15582 (+108)
20K → Half
5:17 | 7:45/mi
25K· 15.53 mi
2:04:40
Rank: #15757 (-175)
Half → 25K
20:23 | 8:24/mi
30K· 18.64 mi
2:30:45
Rank: #15415 (+342)
25K → 30K
26:05 | 8:24/mi
20M
2:42:18
Rank: #15259 (+156)
30K → 20M
11:33 | 8:30/mi
21M
2:51:08
Rank: #15026 (+233)
20M → 21M
8:50 | 8:50/mi
35K· 21.75 mi
2:57:19
Rank: #14973 (+53)
21M → 35K
6:11 | 8:16/mi
23M
3:07:37
Rank: #14718 (+255)
35K → 23M
10:18 | 8:14/mi
24M
3:15:48
Rank: #14602 (+116)
23M → 24M
8:11 | 8:11/mi
40K· 24.85 mi
3:22:57
Rank: #14490 (+112)
24M → 40K
7:09 | 8:22/mi
25.2M
3:26:09
Rank: #14461 (+29)
40K → 25.2M
3:12 | 9:17/mi
Finish· 26.22 mi
3:34:30
Rank: #14424 (+37)
25.2M → Finish
8:21 | 8:12/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:17
Pace7:57 /mi
2nd Half
Distance13.11 mi
Time1:50:13
Pace8:24 /mi
📊Positive Split: 5.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:4924:347:5424:34
7:54
-
10K
6.21 mi11:41:2949:147:5524:40
7:56
+0:02
15K
9.32 mi12:06:011:13:467:5524:32
7:54
-0:02
20K
12.43 mi12:31:151:39:007:5825:14
8:07
+0:13
Half
13.11 mi12:36:321:44:177:575:17
7:45
-0:22
25K
15.53 mi12:56:552:04:408:0220:23
8:24
+0:39
30K
18.64 mi13:23:002:30:458:0526:05
8:24
0:00
20M
20.00 mi13:34:332:42:188:0711:33
8:30
+0:06
21M
21.00 mi13:43:232:51:088:098:50
8:50
+0:20
35K
21.75 mi13:49:342:57:198:096:11
8:16
-0:34
23M
23.00 mi13:59:523:07:378:0910:18
8:14
-0:02
24M
24.00 mi14:08:033:15:488:108:11
8:11
-0:03
40K
24.85 mi14:15:123:22:578:107:09
8:22
+0:11
25.2M
25.20 mi14:18:243:26:098:113:12
9:17
+0:55
Finish
26.22 mi14:26:453:34:308:118:21
8:12
-1:05

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

7:45 /mi

Average Pace

8:11 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:22:28

94% of race

Time at Steady Pace

8:50

4% of race

Time at Slower Pace

3:12

1% of race

Average Pace: 8:11 /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 mi11:16:4924:347:5424:34
7:54
#15779
10K
6.21 mi11:41:2949:147:5524:40
7:56
#15898
15K
9.32 mi12:06:011:13:467:5524:32
7:54
#15627
20K
12.43 mi12:31:151:39:007:5825:14
8:07
#15690
Half
13.11 mi12:36:321:44:177:575:17
7:45
#15582
25K
15.53 mi12:56:552:04:408:0220:23
8:24
#15757
30K
18.64 mi13:23:002:30:458:0526:05
8:24
#15415
20M
20.00 mi13:34:332:42:188:0711:33
8:30
#15259
21M
21.00 mi13:43:232:51:088:098:50
8:50
#15026
35K
21.75 mi13:49:342:57:198:096:11
8:16
#14973
23M
23.00 mi13:59:523:07:378:0910:18
8:14
#14718
24M
24.00 mi14:08:033:15:488:108:11
8:11
#14602
40K
24.85 mi14:15:123:22:578:107:09
8:22
#14490
25.2M
25.20 mi14:18:243:26:098:113:12
9:17
#14461
Finish
26.22 mi14:26:453:34:308:118:21
8:12
#14424
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi157795008500815220(Top 54%)4701(Top 38%)4701(Top 274%)
10K6.21 mi3.10 mi15898-1195074-665074-6615991(Top 56%)5114(Top 42%)5114(Top 298%)
15K9.32 mi3.11 mi15627+2714915+1594915+15915220(Top 54%)4701(Top 38%)4701(Top 274%)
20K12.43 mi3.11 mi15690-634976-614976-6115800(Top 56%)5094(Top 42%)5094(Top 297%)
Half13.11 mi0.68 mi15582+1084917+594917+5913860(Top 49%)3999(Top 33%)3999(Top 233%)
25K15.53 mi2.42 mi15757-1755028-1115028-11116619(Top 59%)5639(Top 46%)5639(Top 328%)
30K18.64 mi3.11 mi15415+3424898+1304898+13014117(Top 50%)4441(Top 36%)4441(Top 258%)
20M20.00 mi1.36 mi15259+1564840+584840+5813808(Top 49%)4416(Top 36%)4416(Top 257%)
21M21.00 mi1.00 mi15026+2334737+1034737+10312555(Top 44%)3902(Top 32%)3902(Top 227%)
35K21.75 mi0.75 mi14973+534721+164721+1614069(Top 50%)4705(Top 38%)4705(Top 274%)
23M23.00 mi1.25 mi14718+2554610+1114610+11111573(Top 41%)3528(Top 29%)3528(Top 205%)
24M24.00 mi1.00 mi14602+1164574+364574+3612495(Top 44%)4049(Top 33%)4049(Top 236%)
40K24.85 mi0.85 mi14490+1124540+344540+3412582(Top 44%)4235(Top 35%)4235(Top 247%)
25.2M25.20 mi0.35 mi14461+294540454013403(Top 47%)4712(Top 39%)4712(Top 274%)
Finish26.22 mi1.02 mi14424+374551-114551-1114247(Top 50%)5071(Top 41%)5071(Top 295%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21stories
+97ft-345ft

Overall

15220

Females

4701

F40-44

4701

5K→10K

3.1 - 6.2 mi

Top 56%
×5stories
+79ft-138ft

Overall

15991

Females

5114

F40-44

5114

10K→15K

6.2 - 9.3 mi

Top 54%
×3stories
+67ft-78ft

Overall

15220

Females

4701

F40-44

4701

15K→20K

9.3 - 12.4 mi

Top 56%
×5stories
+106ft-86ft

Overall

15800

Females

5094

F40-44

5094

20K→Half

12.4 - 13.1 mi

Top 49%
×2stories
+19ft-37ft

Overall

13860

Females

3999

F40-44

3999

Half→25K

13.1 - 15.5 mi

Top 59%
×4stories
+66ft-88ft

Overall

16619

Females

5639

F40-44

5639

25K→30K

15.5 - 18.6 mi

Top 50%
×9stories
+181ft-148ft

Overall

14117

Females

4441

F40-44

4441

30K→20M

18.6 - 20.0 mi

Top 49%
×5stories
+64ft-50ft

Overall

13808

Females

4416

F40-44

4416

20M→21M

20.0 - 21.0 mi

Top 44%
×8stories
+106ft-24ft

Overall

12555

Females

3902

F40-44

3902

21M→35K

21.0 - 21.8 mi

Top 50%
×7stories
+17ft-86ft

Overall

14069

Females

4705

F40-44

4705

35K→23M

21.8 - 23.0 mi

Top 41%
×5stories
+23ft-63ft

Overall

11573

Females

3528

F40-44

3528

23M→24M

23.0 - 24.0 mi

Top 44%
×6stories
+12ft-82ft

Overall

12495

Females

4049

F40-44

4049

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

12582

Females

4235

F40-44

4235

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

13403

Females

4712

F40-44

4712

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2stories
+22ft-21ft

Overall

14247

Females

5071

F40-44

5071

Passing Analysis

Category:
Athletes Passed
2665
Passed By
1310
Net Change
+1355
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15779
5K → 10K262381-119#15779#15898
10K → 15K34978+271#15898#15627
15K → 20K189252-63#15627#15690
20K → Half1113+108#15690#15582
Half → 25K129304-175#15582#15757
25K → 30K42482+342#15757#15415
30K → 20M19438+156#15415#15259
20M → 21M25017+233#15259#15026
21M → 35K8128+53#15026#14973
35K → 23M27217+255#14973#14718
23M → 24M13822+116#14718#14602
24M → 40K12917+112#14602#14490
40K → 25.2M4718+29#14490#14461
25.2M → Finish9053+37#14461#14424
TOTALS26651310+1355
📊

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