Boston Marathon logo
BOSTON MARATHON 2025

Kelsey Landrum

Bib: 13117•F

NC

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 19%
Gender (Female)
#0 / 12228
Top 4%
Division (F18-39)
#0 / 5469
Top 8%
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
7:04/mi
21:56
↑ 97↓ 3451.5%
10K· 6.21 mi
7:00/mi
43:42
↑ 79↓ 1380.4%
15K· 9.32 mi
6:59/mi
1:05:23
↑ 67↓ 78
20K· 12.43 mi
6:59/mi
1:27:05
↑ 106↓ 860.1%
Half· 13.11 mi
6:53/mi
1:31:47
↑ 19↓ 370.5%
25K· 15.53 mi
6:58/mi
1:48:41
↑ 66↓ 880.2%
30K· 18.64 mi
7:06/mi
2:10:44
↑ 181↓ 1480.2%
20M
7:01/mi
2:20:16
↑ 64↓ 500.2%
21M
7:11/mi
2:27:27
↑ 106↓ 241.6%
35K· 21.75 mi
6:49/mi
2:32:33
↑ 17↓ 861.7%
23M
7:06/mi
2:41:27
↑ 23↓ 630.6%
24M
7:01/mi
2:48:28
↓ 821.3%
40K· 24.85 mi
7:08/mi
2:54:34
↓ 200.3%
25.2M
7:27/mi
2:57:08
↑ 13↓ 160.2%
Finish· 26.22 mi
6:18/mi
3:03:33
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:31:47
Pace7:00 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:31:46
Pace7:00 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:1721:567:0421:56
7:04
-
10K
6.21 mi11:13:0343:427:0221:46
7:00
-0:04
15K
9.32 mi11:34:441:05:237:0121:41
6:59
-0:01
20K
12.43 mi11:56:261:27:057:0021:42
6:59
0:00
Half
13.11 mi12:01:081:31:477:004:42
6:53
-0:06
25K
15.53 mi12:18:021:48:417:0016:54
6:58
+0:05
30K
18.64 mi12:40:052:10:447:0122:03
7:06
+0:08
20M
20.00 mi12:49:372:20:167:019:32
7:01
-0:05
21M
21.00 mi12:56:482:27:277:017:11
7:11
+0:10
35K
21.75 mi13:01:542:32:337:015:06
6:49
-0:22
23M
23.00 mi13:10:482:41:277:018:54
7:06
+0:17
24M
24.00 mi13:17:492:48:287:017:01
7:01
-0:05
40K
24.85 mi13:23:552:54:347:016:06
7:08
+0:07
25.2M
25.20 mi13:26:292:57:087:022:34
7:27
+0:19
Finish
26.22 mi13:32:543:03:337:006:25
6:18
-1:09

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

6:18 /mi

Average Pace

7:00 /mi

Slowest Pace

7:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

16:13

9% of race

Time at Steady Pace

2:44:46

90% of race

Time at Slower Pace

2:34

1% of race

Average Pace: 7:00 /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 mi10:51:1721:567:0421:56
7:04
#8307
10K
6.21 mi11:13:0343:427:0221:46
7:00
#8115
15K
9.32 mi11:34:441:05:237:0121:41
6:59
#7865
20K
12.43 mi11:56:261:27:057:0021:42
6:59
#7553
Half
13.11 mi12:01:081:31:477:004:42
6:53
#7505
25K
15.53 mi12:18:021:48:417:0016:54
6:58
#7246
30K
18.64 mi12:40:052:10:447:0122:03
7:06
#6757
20M
20.00 mi12:49:372:20:167:019:32
7:01
#6471
21M
21.00 mi12:56:482:27:277:017:11
7:11
#6217
35K
21.75 mi13:01:542:32:337:015:06
6:49
#6118
23M
23.00 mi13:10:482:41:277:018:54
7:06
#5927
24M
24.00 mi13:17:492:48:287:017:01
7:01
#5819
40K
24.85 mi13:23:552:54:347:016:06
7:08
#5712
25.2M
25.20 mi13:26:292:57:087:022:34
7:27
#5624
Finish
26.22 mi13:32:543:03:337:006:25
6:18
#5427
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8307109310937492(Top 26%)863(Top 7%)863(Top 16%)
10K6.21 mi3.10 mi8115+1921035+581035+587960(Top 28%)985(Top 8%)985(Top 18%)
15K9.32 mi3.11 mi7865+250950+85950+857492(Top 26%)863(Top 7%)863(Top 16%)
20K12.43 mi3.11 mi7553+312865+85865+856793(Top 24%)725(Top 6%)725(Top 13%)
Half13.11 mi0.68 mi7505+48853+12853+126868(Top 24%)726(Top 6%)726(Top 13%)
25K15.53 mi2.42 mi7246+259799+54799+546139(Top 22%)622(Top 5%)622(Top 11%)
30K18.64 mi3.11 mi6757+489715+84715+845304(Top 19%)508(Top 4%)508(Top 9%)
20M20.00 mi1.36 mi6471+286665+50665+504226(Top 15%)359(Top 3%)359(Top 7%)
21M21.00 mi1.00 mi6217+254626+39626+393094(Top 11%)231(Top 2%)231(Top 4%)
35K21.75 mi0.75 mi6118+99614+12614+124265(Top 15%)446(Top 4%)446(Top 8%)
23M23.00 mi1.25 mi5927+191589+25589+254409(Top 16%)509(Top 4%)509(Top 9%)
24M24.00 mi1.00 mi5819+108585+4585+44750(Top 17%)650(Top 5%)650(Top 12%)
40K24.85 mi0.85 mi5712+107570+15570+154705(Top 17%)688(Top 6%)688(Top 13%)
25.2M25.20 mi0.35 mi5624+88560+10560+103235(Top 11%)372(Top 3%)372(Top 7%)
Finish26.22 mi1.02 mi5427+197528+32528+321914(Top 7%)145(Top 1%)145(Top 3%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21story building
+97ft-345ft

Overall

7492

Females

863

F18-39

863

5K→10K

3.1 - 6.2 mi

Top 28%
×5story building
+79ft-138ft

Overall

7960

Females

985

F18-39

985

10K→15K

6.2 - 9.3 mi

Top 26%
×3story building
+67ft-78ft

Overall

7492

Females

863

F18-39

863

15K→20K

9.3 - 12.4 mi

Top 24%
×5story building
+106ft-86ft

Overall

6793

Females

725

F18-39

725

20K→Half

12.4 - 13.1 mi

Top 24%
×2story building
+19ft-37ft

Overall

6868

Females

726

F18-39

726

Half→25K

13.1 - 15.5 mi

Top 22%
×4story building
+66ft-88ft

Overall

6139

Females

622

F18-39

622

25K→30K

15.5 - 18.6 mi

Top 19%
×9story building
+181ft-148ft

Overall

5304

Females

508

F18-39

508

30K→20M

18.6 - 20.0 mi

Top 15%
×5story building
+64ft-50ft

Overall

4226

Females

359

F18-39

359

20M→21M

20.0 - 21.0 mi

Top 11%
×8story building
+106ft-24ft

Overall

3094

Females

231

F18-39

231

21M→35K

21.0 - 21.8 mi

Top 15%
×7story building
+17ft-86ft

Overall

4265

Females

446

F18-39

446

35K→23M

21.8 - 23.0 mi

Top 16%
×5story building
+23ft-63ft

Overall

4409

Females

509

F18-39

509

23M→24M

23.0 - 24.0 mi

Top 17%
×6story building
+12ft-82ft

Overall

4750

Females

650

F18-39

650

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4705

Females

688

F18-39

688

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

3235

Females

372

F18-39

372

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2story building
+22ft-21ft

Overall

1914

Females

145

F18-39

145

Passing Analysis

Category:
Athletes Passed
3126
Passed By
246
Net Change
+2880
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8307
5K → 10K325133+192#8307#8115
10K → 15K29545+250#8115#7865
15K → 20K33119+312#7865#7553
20K → Half557+48#7553#7505
Half → 25K2667+259#7505#7246
25K → 30K4967+489#7246#6757
30K → 20M2882+286#6757#6471
20M → 21M2551+254#6471#6217
21M → 35K1023+99#6217#6118
35K → 23M1943+191#6118#5927
23M → 24M11911+108#5927#5819
24M → 40K1147+107#5819#5712
40K → 25.2M891+88#5712#5624
25.2M → Finish1970+197#5624#5427
TOTALS3126246+2880
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing