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BOSTON MARATHON 2025

Yuki Chorney

NH

Bib: 16831 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

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:30/mi
26:26
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:47/mi
53:42
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
9:06/mi
1:21:57
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
9:00/mi
1:49:56
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
9:07/mi
1:56:09
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
9:16/mi
2:18:38
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:33/mi
2:48:19
↑ 181↓ 1480.2%
138 ft elev
20M
11:24/mi
3:03:48
↑ 64↓ 500.2%
148 ft elev
21M
10:43/mi
3:14:31
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
11:28/mi
3:23:06
↑ 17↓ 861.7%
156 ft elev
23M
9:57/mi
3:35:33
↑ 23↓ 630.6%
116 ft elev
24M
10:01/mi
3:45:34
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:30/mi
3:53:41
↓ 200.3%
20 ft elev
25.2M
13:35/mi
3:58:22
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
12:00/mi
4:10:36
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:56:098:52 /mi⚡ faster
2nd Half
2:14:2710:15 /mi+15.8%
Positive split — 15.8% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:00:3326:268:3026:26
8:30
-
10K
6.21 mi11:27:4953:428:3927:16
8:47
+0:17
15K
9.32 mi11:56:041:21:578:4828:15
9:06
+0:19
20K
12.43 mi12:24:031:49:568:5127:59
9:00
-0:06
Half
13.11 mi12:30:161:56:098:526:13
9:07
+0:07
25K
15.53 mi12:52:452:18:388:5522:29
9:16
+0:09
30K
18.64 mi13:22:262:48:199:0229:41
9:33
+0:17
20M
20.00 mi13:37:553:03:489:1115:29
11:24
+1:51
21M
21.00 mi13:48:383:14:319:1610:43
10:43
-0:41
35K
21.75 mi13:57:133:23:069:208:35
11:28
+0:45
23M
23.00 mi14:09:403:35:339:2212:27
9:57
-1:31
24M
24.00 mi14:19:413:45:349:2410:01
10:01
+0:04
40K
24.85 mi14:27:483:53:419:248:07
9:30
-0:31
25.2M
25.20 mi14:32:293:58:229:284:41
13:35
+4:05
Finish
26.22 mi14:44:434:10:369:3412:14
12:00
-1:35

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

8:30 /mi

Average Pace

9:34 /mi

Slowest Pace

13:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

53:42

21% of race

Time at Steady Pace

2:25:12

58% of race

Time at Slower Pace

51:42

21% of race

Average Pace: 9:33 /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 mi11:00:3326:268:3026:26
8:30
#19941
10K
6.21 mi11:27:4953:428:3927:16
8:47
#20630
15K
9.32 mi11:56:041:21:578:4828:15
9:06
#21222
20K
12.43 mi12:24:031:49:568:5127:59
9:00
#21159
Half
13.11 mi12:30:161:56:098:526:13
9:07
#21226
25K
15.53 mi12:52:452:18:388:5522:29
9:16
#21228
30K
18.64 mi13:22:262:48:199:0229:41
9:33
#21007
20M
20.00 mi13:37:553:03:489:1115:29
11:24
#21412
21M
21.00 mi13:48:383:14:319:1610:43
10:43
#21374
35K
21.75 mi13:57:133:23:069:208:35
11:28
#21613
23M
23.00 mi14:09:403:35:339:2212:27
9:57
#21516
24M
24.00 mi14:19:413:45:349:2410:01
10:01
#21509
40K
24.85 mi14:27:483:53:419:248:07
9:30
#21393
25.2M
25.20 mi14:32:293:58:229:284:41
13:35
#21504
Finish
26.22 mi14:44:434:10:369:3412:14
12:00
#21810
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi19941746874682243787968796
10K6.21 mi3.10 mi20630-6897850-3827850-3822130081978197
15K9.32 mi3.11 mi21222-5928162-3128162-3122243787968796
20K12.43 mi3.11 mi21159+638118+448118+442102880788078
Half13.11 mi0.68 mi21226-678156-388156-382229387758775
25K15.53 mi2.42 mi21228-28170-148170-142108481478147
30K18.64 mi3.11 mi21007+2218091+798091+792016777467746
20M20.00 mi1.36 mi21412-4058334-2438334-243243631014610146
21M21.00 mi1.00 mi21374+388324+108324+102065982758275
35K21.75 mi0.75 mi21613-2398464-1408464-140250571061310613
23M23.00 mi1.25 mi21516+978443+218443+212031282098209
24M24.00 mi1.00 mi21509+78455-128455-122142788228822
40K24.85 mi0.85 mi21393+1168416+398416+391871474907490
25.2M25.20 mi0.35 mi21504-1118483-678483-67258001108311083
Finish26.22 mi1.02 mi21810-3068676-1938676-193268091153211532

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21story building
+97ft-345ft

Overall

22437

Females

8796

F50-54

8796

5K→10K

3.1 - 6.2 mi

Top 75%
×5story building
+79ft-138ft

Overall

21300

Females

8197

F50-54

8197

10K→15K

6.2 - 9.3 mi

Top 79%
×3story building
+67ft-78ft

Overall

22437

Females

8796

F50-54

8796

15K→20K

9.3 - 12.4 mi

Top 74%
×5story building
+106ft-86ft

Overall

21028

Females

8078

F50-54

8078

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

22293

Females

8775

F50-54

8775

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

21084

Females

8147

F50-54

8147

25K→30K

15.5 - 18.6 mi

Top 71%
×9story building
+181ft-148ft

Overall

20167

Females

7746

F50-54

7746

30K→20M

18.6 - 20.0 mi

Top 86%
×5story building
+64ft-50ft

Overall

24363

Females

10146

F50-54

10146

20M→21M

20.0 - 21.0 mi

Top 73%
×8story building
+106ft-24ft

Overall

20659

Females

8275

F50-54

8275

21M→35K

21.0 - 21.8 mi

Top 88%
×7story building
+17ft-86ft

Overall

25057

Females

10613

F50-54

10613

35K→23M

21.8 - 23.0 mi

Top 72%
×5story building
+23ft-63ft

Overall

20312

Females

8209

F50-54

8209

23M→24M

23.0 - 24.0 mi

Top 75%
×6story building
+12ft-82ft

Overall

21427

Females

8822

F50-54

8822

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18714

Females

7490

F50-54

7490

40K→25.2M

24.9 - 25.2 mi

Top 91%
×1story
+13ft-16ft

Overall

25800

Females

11083

F50-54

11083

25.2M→Finish

25.2 - 26.2 mi

Top 94%
×2story building
+22ft-21ft

Overall

26809

Females

11532

F50-54

11532

Passing Analysis

Category:
Athletes Passed
1310
Passed By
3179
Net Change
-1869
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19941
5K → 10K82771-689#19941#20630
10K → 15K65657-592#20630#21222
15K → 20K228165+63#21222#21159
20K → Half1380-67#21159#21226
Half → 25K147149-2#21226#21228
25K → 30K30685+221#21228#21007
30K → 20M32437-405#21007#21412
20M → 21M9658+38#21412#21374
21M → 35K12251-239#21374#21613
35K → 23M13033+97#21613#21516
23M → 24M6457+7#21516#21509
24M → 40K1226+116#21509#21393
40K → 25.2M7118-111#21393#21504
25.2M → Finish6312-306#21504#21810
TOTALS13103179-1869

Passing Charts

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