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BOSTON MARATHON 2025

Seon Ju Kweon

Bib: 25212•F

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
9:08/mi
28:22
↑ 97↓ 3451.5%
10K· 6.21 mi
9:08/mi
56:45
↑ 79↓ 1380.4%
15K· 9.32 mi
9:14/mi
1:25:26
↑ 67↓ 78
20K· 12.43 mi
9:14/mi
1:54:06
↑ 106↓ 860.1%
Half· 13.11 mi
9:02/mi
2:00:16
↑ 19↓ 370.5%
25K· 15.53 mi
9:37/mi
2:23:35
↑ 66↓ 880.2%
30K· 18.64 mi
11:28/mi
2:59:12
↑ 181↓ 1480.2%
20M
10:29/mi
3:13:27
↑ 64↓ 500.2%
21M
10:54/mi
3:24:21
↑ 106↓ 241.6%
35K· 21.75 mi
9:29/mi
3:31:27
↑ 17↓ 861.7%
23M
9:55/mi
3:43:52
↑ 23↓ 630.6%
24M
9:35/mi
3:53:27
↓ 821.3%
40K· 24.85 mi
9:41/mi
4:01:44
↓ 200.3%
25.2M
11:16/mi
4:05:37
↑ 13↓ 160.2%
Finish· 26.22 mi
10:01/mi
4:15:49
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:16
Pace9:10 /mi
2nd Half
Distance13.11 mi
Time2:15:33
Pace10:20 /mi
📊Positive Split: 12.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:30:0128:229:0828:22
9:08
-
10K
6.21 mi11:58:2456:459:0828:23
9:08
0:00
15K
9.32 mi12:27:051:25:269:1028:41
9:14
+0:06
20K
12.43 mi12:55:451:54:069:1128:40
9:14
0:00
Half
13.11 mi13:01:552:00:169:106:10
9:02
-0:12
25K
15.53 mi13:25:142:23:359:1523:19
9:37
+0:35
30K
18.64 mi14:00:512:59:129:3735:37
11:28
+1:51
20M
20.00 mi14:15:063:13:279:4014:15
10:29
-0:59
21M
21.00 mi14:26:003:24:219:4410:54
10:54
+0:25
35K
21.75 mi14:33:063:31:279:437:06
9:29
-1:25
23M
23.00 mi14:45:313:43:529:4412:25
9:55
+0:26
24M
24.00 mi14:55:063:53:279:449:35
9:35
-0:20
40K
24.85 mi15:03:234:01:449:448:17
9:41
+0:06
25.2M
25.20 mi15:07:164:05:379:453:53
11:16
+1:35
Finish
26.22 mi15:17:284:15:499:4610:12
10:01
-1:15

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

9:02 /mi

Average Pace

9:46 /mi

Slowest Pace

11:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:02:55

25% of race

Time at Steady Pace

1:58:03

46% of race

Time at Slower Pace

1:14:51

29% of race

Average Pace: 9:45 /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 mi11:30:0128:229:0828:22
9:08
#22966
10K
6.21 mi11:58:2456:459:0828:23
9:08
#22958
15K
9.32 mi12:27:051:25:269:1028:41
9:14
#22954
20K
12.43 mi12:55:451:54:069:1128:40
9:14
#22706
Half
13.11 mi13:01:552:00:169:106:10
9:02
#22665
25K
15.53 mi13:25:142:23:359:1523:19
9:37
#22588
30K
18.64 mi14:00:512:59:129:3735:37
11:28
#23126
20M
20.00 mi14:15:063:13:279:4014:15
10:29
#23068
21M
21.00 mi14:26:003:24:219:4410:54
10:54
#22954
35K
21.75 mi14:33:063:31:279:437:06
9:29
#22862
23M
23.00 mi14:45:313:43:529:4412:25
9:55
#22698
24M
24.00 mi14:55:063:53:279:449:35
9:35
#22564
40K
24.85 mi15:03:234:01:449:448:17
9:41
#22454
25.2M
25.20 mi15:07:164:05:379:453:53
11:16
#22437
Finish
26.22 mi15:17:284:15:499:4610:12
10:01
#22458
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi229669150915022979(Top 81%)9093(Top 74%)9093(Top 1457%)
10K6.21 mi3.10 mi22958+89129+219129+2122951(Top 81%)9104(Top 74%)9104(Top 1459%)
15K9.32 mi3.11 mi22954+49096+339096+3322979(Top 81%)9093(Top 74%)9093(Top 1457%)
20K12.43 mi3.11 mi22706+2488956+1408956+14022004(Top 77%)8585(Top 70%)8585(Top 1376%)
Half13.11 mi0.68 mi22665+418940+168940+1622022(Top 78%)8627(Top 71%)8627(Top 1383%)
25K15.53 mi2.42 mi22588+778918+228918+2222257(Top 78%)8792(Top 72%)8792(Top 1409%)
30K18.64 mi3.11 mi23126-5389259-3419259-34124803(Top 87%)10296(Top 84%)10296(Top 1650%)
20M20.00 mi1.36 mi23068+589250+99250+922385(Top 79%)9102(Top 74%)9102(Top 1459%)
21M21.00 mi1.00 mi22954+1149202+489202+4821142(Top 74%)8522(Top 70%)8522(Top 1366%)
35K21.75 mi0.75 mi22862+929165+379165+3720338(Top 72%)8162(Top 67%)8162(Top 1308%)
23M23.00 mi1.25 mi22698+1649100+659100+6520251(Top 71%)8178(Top 67%)8178(Top 1311%)
24M24.00 mi1.00 mi22564+1349052+489052+4819950(Top 70%)8061(Top 66%)8061(Top 1292%)
40K24.85 mi0.85 mi22454+1109007+459007+4519465(Top 69%)7881(Top 64%)7881(Top 1263%)
25.2M25.20 mi0.35 mi22437+179007900721459(Top 76%)8892(Top 73%)8892(Top 1425%)
Finish26.22 mi1.02 mi22458-219035-289035-2822975(Top 81%)9654(Top 79%)9654(Top 1547%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21story building
+97ft-345ft

Overall

22979

Females

9093

F60-64

9093

5K→10K

3.1 - 6.2 mi

Top 81%
×5story building
+79ft-138ft

Overall

22951

Females

9104

F60-64

9104

10K→15K

6.2 - 9.3 mi

Top 81%
×3story building
+67ft-78ft

Overall

22979

Females

9093

F60-64

9093

15K→20K

9.3 - 12.4 mi

Top 77%
×5story building
+106ft-86ft

Overall

22004

Females

8585

F60-64

8585

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

22022

Females

8627

F60-64

8627

Half→25K

13.1 - 15.5 mi

Top 78%
×4story building
+66ft-88ft

Overall

22257

Females

8792

F60-64

8792

25K→30K

15.5 - 18.6 mi

Top 87%
×9story building
+181ft-148ft

Overall

24803

Females

10296

F60-64

10296

30K→20M

18.6 - 20.0 mi

Top 79%
×5story building
+64ft-50ft

Overall

22385

Females

9102

F60-64

9102

20M→21M

20.0 - 21.0 mi

Top 74%
×8story building
+106ft-24ft

Overall

21142

Females

8522

F60-64

8522

21M→35K

21.0 - 21.8 mi

Top 72%
×7story building
+17ft-86ft

Overall

20338

Females

8162

F60-64

8162

35K→23M

21.8 - 23.0 mi

Top 71%
×5story building
+23ft-63ft

Overall

20251

Females

8178

F60-64

8178

23M→24M

23.0 - 24.0 mi

Top 70%
×6story building
+12ft-82ft

Overall

19950

Females

8061

F60-64

8061

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

19465

Females

7881

F60-64

7881

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

21459

Females

8892

F60-64

8892

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2story building
+22ft-21ft

Overall

22975

Females

9654

F60-64

9654

Passing Analysis

Category:
Athletes Passed
1821
Passed By
1313
Net Change
+508
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22966
5K → 10K230222+8#22966#22958
10K → 15K172168+4#22958#22954
15K → 20K32173+248#22954#22706
20K → Half5716+41#22706#22665
Half → 25K17699+77#22665#22588
25K → 30K47585-538#22588#23126
30K → 20M10042+58#23126#23068
20M → 21M13521+114#23068#22954
21M → 35K997+92#22954#22862
35K → 23M1717+164#22862#22698
23M → 24M1373+134#22698#22564
24M → 40K1144+110#22564#22454
40K → 25.2M258+17#22454#22437
25.2M → Finish3758-21#22437#22458
TOTALS18211313+508
📊

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