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BOSTON MARATHON 2025

Kelsi Farren

Bib: 18434•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 40%
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:36/mi
23:37
↑ 97↓ 3451.5%
10K· 6.21 mi
7:18/mi
46:18
↑ 79↓ 1380.4%
15K· 9.32 mi
7:31/mi
1:09:38
↑ 67↓ 78
20K· 12.43 mi
7:56/mi
1:34:17
↑ 106↓ 860.1%
Half· 13.11 mi
7:42/mi
1:39:32
↑ 19↓ 370.5%
25K· 15.53 mi
8:14/mi
1:59:30
↑ 66↓ 880.2%
30K· 18.64 mi
9:24/mi
2:28:42
↑ 181↓ 1480.2%
20M
9:44/mi
2:41:55
↑ 64↓ 500.2%
21M
10:14/mi
2:52:09
↑ 106↓ 241.6%
35K· 21.75 mi
8:08/mi
2:58:14
↑ 17↓ 861.7%
23M
8:41/mi
3:09:06
↑ 23↓ 630.6%
24M
8:40/mi
3:17:46
↓ 821.3%
40K· 24.85 mi
8:28/mi
3:25:00
↓ 200.3%
25.2M
9:25/mi
3:28:15
↑ 13↓ 160.2%
Finish· 26.22 mi
8:31/mi
3:36:56
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:32
Pace7:36 /mi
2nd Half
Distance13.11 mi
Time1:57:24
Pace8:57 /mi
📊Positive Split: 18.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:3923:377:3623:37
7:36
-
10K
6.21 mi11:37:2046:187:2722:41
7:18
-0:18
15K
9.32 mi12:00:401:09:387:2823:20
7:31
+0:13
20K
12.43 mi12:25:191:34:177:3524:39
7:56
+0:25
Half
13.11 mi12:30:341:39:327:365:15
7:42
-0:14
25K
15.53 mi12:50:321:59:307:4219:58
8:14
+0:32
30K
18.64 mi13:19:442:28:427:5929:12
9:24
+1:10
20M
20.00 mi13:32:572:41:558:0613:13
9:44
+0:20
21M
21.00 mi13:43:112:52:098:1210:14
10:14
+0:30
35K
21.75 mi13:49:162:58:148:126:05
8:08
-2:06
23M
23.00 mi14:00:083:09:068:1310:52
8:41
+0:33
24M
24.00 mi14:08:483:17:468:148:40
8:40
-0:01
40K
24.85 mi14:16:023:25:008:157:14
8:28
-0:12
25.2M
25.20 mi14:19:173:28:158:163:15
9:25
+0:57
Finish
26.22 mi14:27:583:36:568:178:41
8:31
-0:54

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

7:18 /mi

Average Pace

8:17 /mi

Slowest Pace

10:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:39:32

46% of race

Time at Steady Pace

1:01:30

28% of race

Time at Slower Pace

55:54

26% of race

Average Pace: 8:16 /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 mi11:14:3923:377:3623:37
7:36
#13159
10K
6.21 mi11:37:2046:187:2722:41
7:18
#11718
15K
9.32 mi12:00:401:09:387:2823:20
7:31
#11726
20K
12.43 mi12:25:191:34:177:3524:39
7:56
#12378
Half
13.11 mi12:30:341:39:327:365:15
7:42
#12435
25K
15.53 mi12:50:321:59:307:4219:58
8:14
#12973
30K
18.64 mi13:19:442:28:427:5929:12
9:24
#14512
20M
20.00 mi13:32:572:41:558:0613:13
9:44
#15107
21M
21.00 mi13:43:112:52:098:1210:14
10:14
#15375
35K
21.75 mi13:49:162:58:148:126:05
8:08
#15267
23M
23.00 mi14:00:083:09:068:1310:52
8:41
#15205
24M
24.00 mi14:08:483:17:468:148:40
8:40
#15189
40K
24.85 mi14:16:023:25:008:157:14
8:28
#15098
25.2M
25.20 mi14:19:173:28:158:163:15
9:25
#15062
Finish
26.22 mi14:27:583:36:568:178:41
8:31
#15087
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi131593409340911871(Top 42%)2839(Top 23%)2839(Top 52%)
10K6.21 mi3.10 mi11718+14412656+7532656+75310376(Top 37%)2004(Top 16%)2004(Top 37%)
15K9.32 mi3.11 mi11726-82685-292685-2911871(Top 42%)2839(Top 23%)2839(Top 52%)
20K12.43 mi3.11 mi12378-6523076-3913076-39114415(Top 51%)4326(Top 35%)4326(Top 79%)
Half13.11 mi0.68 mi12435-573115-393115-3913449(Top 47%)3760(Top 31%)3760(Top 69%)
25K15.53 mi2.42 mi12973-5383460-3453460-34515537(Top 55%)5045(Top 41%)5045(Top 92%)
30K18.64 mi3.11 mi14512-15394395-9354395-93519527(Top 69%)7405(Top 61%)7405(Top 135%)
20M20.00 mi1.36 mi15107-5954762-3674762-36720032(Top 71%)7806(Top 64%)7806(Top 143%)
21M21.00 mi1.00 mi15375-2684935-1734935-17319140(Top 67%)7396(Top 60%)7396(Top 135%)
35K21.75 mi0.75 mi15267+1084889+464889+4613200(Top 46%)4284(Top 35%)4284(Top 78%)
23M23.00 mi1.25 mi15205+624892-34892-314442(Top 51%)5031(Top 41%)5031(Top 92%)
24M24.00 mi1.00 mi15189+164917-254917-2515551(Top 55%)5664(Top 46%)5664(Top 104%)
40K24.85 mi0.85 mi15098+914897+204897+2013220(Top 47%)4565(Top 37%)4565(Top 83%)
25.2M25.20 mi0.35 mi15062+364888+94888+914208(Top 50%)5128(Top 42%)5128(Top 94%)
Finish26.22 mi1.02 mi15087-254926-384926-3816360(Top 58%)6220(Top 51%)6220(Top 114%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21story building
+97ft-345ft

Overall

11871

Females

2839

F18-39

2839

5K→10K

3.1 - 6.2 mi

Top 37%
×5story building
+79ft-138ft

Overall

10376

Females

2004

F18-39

2004

10K→15K

6.2 - 9.3 mi

Top 42%
×3story building
+67ft-78ft

Overall

11871

Females

2839

F18-39

2839

15K→20K

9.3 - 12.4 mi

Top 51%
×5story building
+106ft-86ft

Overall

14415

Females

4326

F18-39

4326

20K→Half

12.4 - 13.1 mi

Top 47%
×2story building
+19ft-37ft

Overall

13449

Females

3760

F18-39

3760

Half→25K

13.1 - 15.5 mi

Top 55%
×4story building
+66ft-88ft

Overall

15537

Females

5045

F18-39

5045

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

19527

Females

7405

F18-39

7405

30K→20M

18.6 - 20.0 mi

Top 71%
×5story building
+64ft-50ft

Overall

20032

Females

7806

F18-39

7806

20M→21M

20.0 - 21.0 mi

Top 67%
×8story building
+106ft-24ft

Overall

19140

Females

7396

F18-39

7396

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

13200

Females

4284

F18-39

4284

35K→23M

21.8 - 23.0 mi

Top 51%
×5story building
+23ft-63ft

Overall

14442

Females

5031

F18-39

5031

23M→24M

23.0 - 24.0 mi

Top 55%
×6story building
+12ft-82ft

Overall

15551

Females

5664

F18-39

5664

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

13220

Females

4565

F18-39

4565

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

14208

Females

5128

F18-39

5128

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

16360

Females

6220

F18-39

6220

Passing Analysis

Category:
Athletes Passed
2469
Passed By
4397
Net Change
-1928
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13159
5K → 10K145110+1441#13159#11718
10K → 15K172180-8#11718#11726
15K → 20K62714-652#11726#12378
20K → Half966-57#12378#12435
Half → 25K60598-538#12435#12973
25K → 30K421581-1539#12973#14512
30K → 20M36631-595#14512#15107
20M → 21M54322-268#15107#15375
21M → 35K12416+108#15375#15267
35K → 23M13472+62#15267#15205
23M → 24M9074+16#15205#15189
24M → 40K11423+91#15189#15098
40K → 25.2M5216+36#15098#15062
25.2M → Finish6994-25#15062#15087
TOTALS24694397-1928
📊

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