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BOSTON MARATHON 2025

Moon Sil Choi

Bib: 25434•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F60-64)
#0 / 624
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
9:22/mi
29:05
↑ 97↓ 3451.5%
10K· 6.21 mi
9:48/mi
59:32
↑ 79↓ 1380.4%
15K· 9.32 mi
10:09/mi
1:31:05
↑ 67↓ 78
20K· 12.43 mi
10:48/mi
2:04:38
↑ 106↓ 860.1%
Half· 13.11 mi
10:39/mi
2:11:54
↑ 19↓ 370.5%
25K· 15.53 mi
11:16/mi
2:39:13
↑ 66↓ 880.2%
30K· 18.64 mi
11:39/mi
3:15:26
↑ 181↓ 1480.2%
20M
12:08/mi
3:31:55
↑ 64↓ 500.2%
21M
13:41/mi
3:45:36
↑ 106↓ 241.6%
35K· 21.75 mi
11:42/mi
3:54:21
↑ 17↓ 861.7%
23M
12:33/mi
4:10:04
↑ 23↓ 630.6%
24M
11:46/mi
4:21:50
↓ 821.3%
40K· 24.85 mi
12:24/mi
4:32:26
↓ 200.3%
25.2M
13:26/mi
4:37:04
↑ 13↓ 160.2%
Finish· 26.22 mi
11:30/mi
4:48:47
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:11:54
Pace10:04 /mi
2nd Half
Distance13.11 mi
Time2:36:53
Pace11:58 /mi
📊Positive Split: 18.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:28:5229:059:2229:05
9:22
-
10K
6.21 mi11:59:1959:329:3530:27
9:48
+0:26
15K
9.32 mi12:30:521:31:059:4631:33
10:09
+0:21
20K
12.43 mi13:04:252:04:3810:0233:33
10:48
+0:39
Half
13.11 mi13:11:412:11:5410:047:16
10:39
-0:09
25K
15.53 mi13:39:002:39:1310:1527:19
11:16
+0:37
30K
18.64 mi14:15:133:15:2610:2936:13
11:39
+0:23
20M
20.00 mi14:31:423:31:5510:3616:29
12:08
+0:29
21M
21.00 mi14:45:233:45:3610:4513:41
13:41
+1:33
35K
21.75 mi14:54:083:54:2110:478:45
11:42
-1:59
23M
23.00 mi15:09:514:10:0410:5215:43
12:33
+0:51
24M
24.00 mi15:21:374:21:5010:5511:46
11:46
-0:47
40K
24.85 mi15:32:134:32:2610:5810:36
12:24
+0:38
25.2M
25.20 mi15:36:514:37:0411:004:38
13:26
+1:02
Finish
26.22 mi15:48:344:48:4711:0111:43
11:30
-1:56

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

9:22 /mi

Average Pace

11:01 /mi

Slowest Pace

13:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:11:54

46% of race

Time at Steady Pace

1:52:15

39% of race

Time at Slower Pace

44:38

15% of race

Average Pace: 11:01 /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 mi11:28:5229:059:2229:05
9:22
#23773
10K
6.21 mi11:59:1959:329:3530:27
9:48
#24399
15K
9.32 mi12:30:521:31:059:4631:33
10:09
#24756
20K
12.43 mi13:04:252:04:3810:0233:33
10:48
#25078
Half
13.11 mi13:11:412:11:5410:047:16
10:39
#25144
25K
15.53 mi13:39:002:39:1310:1527:19
11:16
#25223
30K
18.64 mi14:15:133:15:2610:2936:13
11:39
#25209
20M
20.00 mi14:31:423:31:5510:3616:29
12:08
#25237
21M
21.00 mi14:45:233:45:3610:4513:41
13:41
#25290
35K
21.75 mi14:54:083:54:2110:478:45
11:42
#25300
23M
23.00 mi15:09:514:10:0410:5215:43
12:33
#25351
24M
24.00 mi15:21:374:21:5010:5511:46
11:46
#25347
40K
24.85 mi15:32:134:32:2610:5810:36
12:24
#25361
25.2M
25.20 mi15:36:514:37:0411:004:38
13:26
#25373
Finish
26.22 mi15:48:344:48:4711:0111:43
11:30
#25405
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi237739573957325315(Top 89%)10414(Top 85%)10414(Top 1669%)
10K6.21 mi3.10 mi24399-6269896-3239896-32324844(Top 87%)10150(Top 83%)10150(Top 1627%)
15K9.32 mi3.11 mi24756-35710090-19410090-19425315(Top 89%)10414(Top 85%)10414(Top 1669%)
20K12.43 mi3.11 mi25078-32210273-18310273-18325709(Top 91%)10646(Top 87%)10646(Top 1706%)
Half13.11 mi0.68 mi25144-6610319-4610319-4625992(Top 92%)10816(Top 88%)10816(Top 1733%)
25K15.53 mi2.42 mi25223-7910373-5410373-5425568(Top 90%)10613(Top 87%)10613(Top 1701%)
30K18.64 mi3.11 mi25209+1410397-2410397-2425072(Top 88%)10446(Top 85%)10446(Top 1674%)
20M20.00 mi1.36 mi25237-2810431-3410431-3425435(Top 90%)10721(Top 88%)10721(Top 1718%)
21M21.00 mi1.00 mi25290-5310472-4110472-4125845(Top 91%)10966(Top 90%)10966(Top 1757%)
35K21.75 mi0.75 mi25300-1010485-1310485-1325375(Top 89%)10781(Top 88%)10781(Top 1728%)
23M23.00 mi1.25 mi25351-5110528-4310528-4325854(Top 91%)11027(Top 90%)11027(Top 1767%)
24M24.00 mi1.00 mi25347+410530-210530-225346(Top 89%)10799(Top 88%)10799(Top 1731%)
40K24.85 mi0.85 mi25361-1410543-1310543-1325501(Top 90%)10910(Top 89%)10910(Top 1748%)
25.2M25.20 mi0.35 mi25373-1210554-1110554-1125558(Top 90%)10976(Top 90%)10976(Top 1759%)
Finish26.22 mi1.02 mi25405-3210579-2510579-2526117(Top 92%)11203(Top 92%)11203(Top 1795%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21story building
+97ft-345ft

Overall

25315

Females

10414

F60-64

10414

5K→10K

3.1 - 6.2 mi

Top 87%
×5story building
+79ft-138ft

Overall

24844

Females

10150

F60-64

10150

10K→15K

6.2 - 9.3 mi

Top 89%
×3story building
+67ft-78ft

Overall

25315

Females

10414

F60-64

10414

15K→20K

9.3 - 12.4 mi

Top 91%
×5story building
+106ft-86ft

Overall

25709

Females

10646

F60-64

10646

20K→Half

12.4 - 13.1 mi

Top 92%
×2story building
+19ft-37ft

Overall

25992

Females

10816

F60-64

10816

Half→25K

13.1 - 15.5 mi

Top 90%
×4story building
+66ft-88ft

Overall

25568

Females

10613

F60-64

10613

25K→30K

15.5 - 18.6 mi

Top 88%
×9story building
+181ft-148ft

Overall

25072

Females

10446

F60-64

10446

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

25435

Females

10721

F60-64

10721

20M→21M

20.0 - 21.0 mi

Top 91%
×8story building
+106ft-24ft

Overall

25845

Females

10966

F60-64

10966

21M→35K

21.0 - 21.8 mi

Top 89%
×7story building
+17ft-86ft

Overall

25375

Females

10781

F60-64

10781

35K→23M

21.8 - 23.0 mi

Top 91%
×5story building
+23ft-63ft

Overall

25854

Females

11027

F60-64

11027

23M→24M

23.0 - 24.0 mi

Top 89%
×6story building
+12ft-82ft

Overall

25346

Females

10799

F60-64

10799

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

25501

Females

10910

F60-64

10910

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

25558

Females

10976

F60-64

10976

25.2M→Finish

25.2 - 26.2 mi

Top 92%
×2story building
+22ft-21ft

Overall

26117

Females

11203

F60-64

11203

Passing Analysis

Category:
Athletes Passed
598
Passed By
2230
Net Change
-1632
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23773
5K → 10K56682-626#23773#24399
10K → 15K46403-357#24399#24756
15K → 20K47369-322#24756#25078
20K → Half1177-66#25078#25144
Half → 25K76155-79#25144#25223
25K → 30K141127+14#25223#25209
30K → 20M4371-28#25209#25237
20M → 21M3083-53#25237#25290
21M → 35K2636-10#25290#25300
35K → 23M2475-51#25300#25351
23M → 24M3834+4#25351#25347
24M → 40K2842-14#25347#25361
40K → 25.2M1123-12#25361#25373
25.2M → Finish2153-32#25373#25405
TOTALS5982230-1632
📊

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