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BOSTON MARATHON 2025

Kelsey Alves

Bib: 13924•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 33%
Gender (Female)
#0 / 12228
Top 16%
Division (F18-39)
#0 / 5469
Top 29%
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
7:27/mi
23:09
↑ 97↓ 3451.5%
10K· 6.21 mi
7:26/mi
46:14
↑ 79↓ 1380.4%
15K· 9.32 mi
7:24/mi
1:09:13
↑ 67↓ 78
20K· 12.43 mi
7:29/mi
1:32:27
↑ 106↓ 860.1%
Half· 13.11 mi
7:24/mi
1:37:30
↑ 19↓ 370.5%
25K· 15.53 mi
7:25/mi
1:55:30
↑ 66↓ 880.2%
30K· 18.64 mi
7:40/mi
2:19:18
↑ 181↓ 1480.2%
20M
7:48/mi
2:29:54
↑ 64↓ 500.2%
21M
8:13/mi
2:38:07
↑ 106↓ 241.6%
35K· 21.75 mi
7:20/mi
2:43:36
↑ 17↓ 861.7%
23M
7:36/mi
2:53:07
↑ 23↓ 630.6%
24M
7:29/mi
3:00:36
↓ 821.3%
40K· 24.85 mi
7:45/mi
3:07:14
↓ 200.3%
25.2M
8:25/mi
3:10:08
↑ 13↓ 160.2%
Finish· 26.22 mi
7:28/mi
3:17:45
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:30
Pace7:26 /mi
2nd Half
Distance13.11 mi
Time1:40:15
Pace7:39 /mi
📊Positive Split: 2.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:3623:097:2723:09
7:27
-
10K
6.21 mi11:15:4146:147:2623:05
7:26
-0:01
15K
9.32 mi11:38:401:09:137:2622:59
7:24
-0:02
20K
12.43 mi12:01:541:32:277:2623:14
7:29
+0:05
Half
13.11 mi12:06:571:37:307:265:03
7:24
-0:05
25K
15.53 mi12:24:571:55:307:2618:00
7:25
+0:01
30K
18.64 mi12:48:452:19:187:2823:48
7:40
+0:15
20M
20.00 mi12:59:212:29:547:3010:36
7:48
+0:08
21M
21.00 mi13:07:342:38:077:328:13
8:13
+0:25
35K
21.75 mi13:13:032:43:367:315:29
7:20
-0:53
23M
23.00 mi13:22:342:53:077:329:31
7:36
+0:16
24M
24.00 mi13:30:033:00:367:327:29
7:29
-0:07
40K
24.85 mi13:36:413:07:147:326:38
7:45
+0:16
25.2M
25.20 mi13:39:353:10:087:332:54
8:25
+0:40
Finish
26.22 mi13:47:123:17:457:337:37
7:28
-0:57

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

7:20 /mi

Average Pace

7:33 /mi

Slowest Pace

8:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:06:38

94% of race

Time at Steady Pace

11:07

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 mi10:52:3623:097:2723:09
7:27
#11802
10K
6.21 mi11:15:4146:147:2623:05
7:26
#11627
15K
9.32 mi11:38:401:09:137:2622:59
7:24
#11313
20K
12.43 mi12:01:541:32:277:2623:14
7:29
#11117
Half
13.11 mi12:06:571:37:307:265:03
7:24
#11106
25K
15.53 mi12:24:571:55:307:2618:00
7:25
#10754
30K
18.64 mi12:48:452:19:187:2823:48
7:40
#10337
20M
20.00 mi12:59:212:29:547:3010:36
7:48
#10210
21M
21.00 mi13:07:342:38:077:328:13
8:13
#10085
35K
21.75 mi13:13:032:43:367:315:29
7:20
#9928
23M
23.00 mi13:22:342:53:077:329:31
7:36
#9732
24M
24.00 mi13:30:033:00:367:327:29
7:29
#9600
40K
24.85 mi13:36:413:07:147:326:38
7:45
#9524
25.2M
25.20 mi13:39:353:10:087:332:54
8:25
#9488
Finish
26.22 mi13:47:123:17:457:337:37
7:28
#9437
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi118022683268310865(Top 38%)2303(Top 19%)2303(Top 42%)
10K6.21 mi3.10 mi11627+1752612+712612+7111461(Top 40%)2540(Top 21%)2540(Top 46%)
15K9.32 mi3.11 mi11313+3142480+1322480+13210865(Top 38%)2303(Top 19%)2303(Top 42%)
20K12.43 mi3.11 mi11117+1962407+732407+7310579(Top 37%)2247(Top 18%)2247(Top 41%)
Half13.11 mi0.68 mi11106+112401+62401+610928(Top 38%)2370(Top 19%)2370(Top 43%)
25K15.53 mi2.42 mi10754+3522262+1392262+1399350(Top 33%)1796(Top 15%)1796(Top 33%)
30K18.64 mi3.11 mi10337+4172117+1452117+1458923(Top 31%)1800(Top 15%)1800(Top 33%)
20M20.00 mi1.36 mi10210+1272091+262091+269043(Top 32%)1998(Top 16%)1998(Top 37%)
21M21.00 mi1.00 mi10085+1252077+142077+148704(Top 31%)2031(Top 17%)2031(Top 37%)
35K21.75 mi0.75 mi9928+1572025+522025+527468(Top 26%)1490(Top 12%)1490(Top 27%)
23M23.00 mi1.25 mi9732+1961971+541971+547292(Top 26%)1528(Top 12%)1528(Top 28%)
24M24.00 mi1.00 mi9600+1321948+231948+237605(Top 27%)1711(Top 14%)1711(Top 31%)
40K24.85 mi0.85 mi9524+761943+51943+58507(Top 30%)2222(Top 18%)2222(Top 41%)
25.2M25.20 mi0.35 mi9488+361948-51948-58313(Top 29%)2193(Top 18%)2193(Top 40%)
Finish26.22 mi1.02 mi9437+511958-101958-109027(Top 32%)2545(Top 21%)2545(Top 47%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10865

Females

2303

F18-39

2303

5K→10K

3.1 - 6.2 mi

Top 40%
×5story building
+79ft-138ft

Overall

11461

Females

2540

F18-39

2540

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10865

Females

2303

F18-39

2303

15K→20K

9.3 - 12.4 mi

Top 37%
×5story building
+106ft-86ft

Overall

10579

Females

2247

F18-39

2247

20K→Half

12.4 - 13.1 mi

Top 38%
×2story building
+19ft-37ft

Overall

10928

Females

2370

F18-39

2370

Half→25K

13.1 - 15.5 mi

Top 33%
×4story building
+66ft-88ft

Overall

9350

Females

1796

F18-39

1796

25K→30K

15.5 - 18.6 mi

Top 31%
×9story building
+181ft-148ft

Overall

8923

Females

1800

F18-39

1800

30K→20M

18.6 - 20.0 mi

Top 32%
×5story building
+64ft-50ft

Overall

9043

Females

1998

F18-39

1998

20M→21M

20.0 - 21.0 mi

Top 31%
×8story building
+106ft-24ft

Overall

8704

Females

2031

F18-39

2031

21M→35K

21.0 - 21.8 mi

Top 26%
×7story building
+17ft-86ft

Overall

7468

Females

1490

F18-39

1490

35K→23M

21.8 - 23.0 mi

Top 26%
×5story building
+23ft-63ft

Overall

7292

Females

1528

F18-39

1528

23M→24M

23.0 - 24.0 mi

Top 27%
×6story building
+12ft-82ft

Overall

7605

Females

1711

F18-39

1711

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

8507

Females

2222

F18-39

2222

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

8313

Females

2193

F18-39

2193

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2story building
+22ft-21ft

Overall

9027

Females

2545

F18-39

2545

Passing Analysis

Category:
Athletes Passed
2996
Passed By
631
Net Change
+2365
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11802
5K → 10K348173+175#11802#11627
10K → 15K36652+314#11627#11313
15K → 20K27175+196#11313#11117
20K → Half4332+11#11117#11106
Half → 25K37927+352#11106#10754
25K → 30K46144+417#10754#10337
30K → 20M17851+127#10337#10210
20M → 21M16742+125#10210#10085
21M → 35K1647+157#10085#9928
35K → 23M20610+196#9928#9732
23M → 24M16028+132#9732#9600
24M → 40K10630+76#9600#9524
40K → 25.2M4913+36#9524#9488
25.2M → Finish9847+51#9488#9437
TOTALS2996631+2365
📊

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