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BOSTON MARATHON 2025

Joyce Lee

Bib: 19921•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 (F40-44)
#0 / 1718
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
7:55/mi
24:35
↑ 97↓ 3451.5%
10K· 6.21 mi
8:06/mi
49:44
↑ 79↓ 1380.4%
15K· 9.32 mi
8:13/mi
1:15:16
↑ 67↓ 78
20K· 12.43 mi
8:38/mi
1:42:06
↑ 106↓ 860.1%
Half· 13.11 mi
8:42/mi
1:48:02
↑ 19↓ 370.5%
25K· 15.53 mi
9:09/mi
2:10:13
↑ 66↓ 880.2%
30K· 18.64 mi
11:57/mi
2:47:21
↑ 181↓ 1480.2%
20M
12:38/mi
3:04:31
↑ 64↓ 500.2%
21M
12:49/mi
3:17:20
↑ 106↓ 241.6%
35K· 21.75 mi
12:19/mi
3:26:33
↑ 17↓ 861.7%
23M
10:11/mi
3:39:18
↑ 23↓ 630.6%
24M
8:33/mi
3:47:51
↓ 821.3%
40K· 24.85 mi
8:38/mi
3:55:14
↓ 200.3%
25.2M
9:31/mi
3:58:31
↑ 13↓ 160.2%
Finish· 26.22 mi
8:02/mi
4:06:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:02
Pace8:14 /mi
2nd Half
Distance13.11 mi
Time2:18:40
Pace10:35 /mi
📊Positive Split: 28.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:0924:357:5524:35
7:55
-
10K
6.21 mi11:41:1849:448:0025:09
8:06
+0:11
15K
9.32 mi12:06:501:15:168:0525:32
8:13
+0:07
20K
12.43 mi12:33:401:42:068:1326:50
8:38
+0:25
Half
13.11 mi12:39:361:48:028:145:56
8:42
+0:04
25K
15.53 mi13:01:472:10:138:2322:11
9:09
+0:27
30K
18.64 mi13:38:552:47:218:5937:08
11:57
+2:48
20M
20.00 mi13:56:053:04:319:1417:10
12:38
+0:41
21M
21.00 mi14:08:543:17:209:2412:49
12:49
+0:11
35K
21.75 mi14:18:073:26:339:309:13
12:19
-0:30
23M
23.00 mi14:30:523:39:189:3212:45
10:11
-2:08
24M
24.00 mi14:39:253:47:519:308:33
8:33
-1:38
40K
24.85 mi14:46:483:55:149:287:23
8:38
+0:05
25.2M
25.20 mi14:50:053:58:319:283:17
9:31
+0:53
Finish
26.22 mi14:58:164:06:429:258:11
8:02
-1:29

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

7:55 /mi

Average Pace

9:25 /mi

Slowest Pace

12:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:37:37

64% of race

Time at Slower Pace

1:29:05

36% of race

Average Pace: 9:25 /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 mi11:16:0924:357:5524:35
7:55
#15846
10K
6.21 mi11:41:1849:448:0025:09
8:06
#16558
15K
9.32 mi12:06:501:15:168:0525:32
8:13
#16903
20K
12.43 mi12:33:401:42:068:1326:50
8:38
#17449
Half
13.11 mi12:39:361:48:028:145:56
8:42
#17617
25K
15.53 mi13:01:472:10:138:2322:11
9:09
#18153
30K
18.64 mi13:38:552:47:218:5937:08
11:57
#20762
20M
20.00 mi13:56:053:04:319:1417:10
12:38
#21574
21M
21.00 mi14:08:543:17:209:2412:49
12:49
#21905
35K
21.75 mi14:18:073:26:339:309:13
12:19
#22172
23M
23.00 mi14:30:523:39:189:3212:45
10:11
#22077
24M
24.00 mi14:39:253:47:519:308:33
8:33
#21827
40K
24.85 mi14:46:483:55:149:287:23
8:38
#21611
25.2M
25.20 mi14:50:053:58:319:283:17
9:31
#21523
Finish
26.22 mi14:58:164:06:429:258:11
8:02
#21296
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi158465055505517530(Top 62%)6038(Top 49%)6038(Top 351%)
10K6.21 mi3.10 mi16558-7125477-4225477-42217181(Top 60%)5811(Top 48%)5811(Top 338%)
15K9.32 mi3.11 mi16903-3455667-1905667-19017530(Top 62%)6038(Top 49%)6038(Top 351%)
20K12.43 mi3.11 mi17449-5466003-3366003-33619073(Top 67%)6959(Top 57%)6959(Top 405%)
Half13.11 mi0.68 mi17617-1686108-1056108-10520419(Top 72%)7720(Top 63%)7720(Top 449%)
25K15.53 mi2.42 mi18153-5366449-3416449-34120570(Top 72%)7856(Top 64%)7856(Top 457%)
30K18.64 mi3.11 mi20762-26097963-15147963-151425529(Top 90%)10691(Top 87%)10691(Top 622%)
20M20.00 mi1.36 mi21574-8128403-4408403-44026064(Top 92%)11044(Top 90%)11044(Top 643%)
21M21.00 mi1.00 mi21905-3318610-2078610-20724821(Top 87%)10469(Top 86%)10469(Top 609%)
35K21.75 mi0.75 mi22172-2678772-1628772-16226276(Top 93%)11225(Top 92%)11225(Top 653%)
23M23.00 mi1.25 mi22077+958761+118761+1121066(Top 74%)8592(Top 70%)8592(Top 500%)
24M24.00 mi1.00 mi21827+2508644+1178644+11714877(Top 52%)5332(Top 44%)5332(Top 310%)
40K24.85 mi0.85 mi21611+2168539+1058539+10514332(Top 50%)5161(Top 42%)5161(Top 300%)
25.2M25.20 mi0.35 mi21523+888494+458494+4514820(Top 52%)5490(Top 45%)5490(Top 320%)
Finish26.22 mi1.02 mi21296+2278385+1098385+10913151(Top 46%)4539(Top 37%)4539(Top 264%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21story building
+97ft-345ft

Overall

17530

Females

6038

F40-44

6038

5K→10K

3.1 - 6.2 mi

Top 60%
×5story building
+79ft-138ft

Overall

17181

Females

5811

F40-44

5811

10K→15K

6.2 - 9.3 mi

Top 62%
×3story building
+67ft-78ft

Overall

17530

Females

6038

F40-44

6038

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

19073

Females

6959

F40-44

6959

20K→Half

12.4 - 13.1 mi

Top 72%
×2story building
+19ft-37ft

Overall

20419

Females

7720

F40-44

7720

Half→25K

13.1 - 15.5 mi

Top 72%
×4story building
+66ft-88ft

Overall

20570

Females

7856

F40-44

7856

25K→30K

15.5 - 18.6 mi

Top 90%
×9story building
+181ft-148ft

Overall

25529

Females

10691

F40-44

10691

30K→20M

18.6 - 20.0 mi

Top 92%
×5story building
+64ft-50ft

Overall

26064

Females

11044

F40-44

11044

20M→21M

20.0 - 21.0 mi

Top 87%
×8story building
+106ft-24ft

Overall

24821

Females

10469

F40-44

10469

21M→35K

21.0 - 21.8 mi

Top 93%
×7story building
+17ft-86ft

Overall

26276

Females

11225

F40-44

11225

35K→23M

21.8 - 23.0 mi

Top 74%
×5story building
+23ft-63ft

Overall

21066

Females

8592

F40-44

8592

23M→24M

23.0 - 24.0 mi

Top 52%
×6story building
+12ft-82ft

Overall

14877

Females

5332

F40-44

5332

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

14332

Females

5161

F40-44

5161

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

14820

Females

5490

F40-44

5490

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2story building
+22ft-21ft

Overall

13151

Females

4539

F40-44

4539

Passing Analysis

Category:
Athletes Passed
1334
Passed By
6784
Net Change
-5450
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15846
5K → 10K118830-712#15846#16558
10K → 15K116461-345#16558#16903
15K → 20K77623-546#16903#17449
20K → Half6174-168#17449#17617
Half → 25K61597-536#17617#18153
25K → 30K102619-2609#18153#20762
30K → 20M9821-812#20762#21574
20M → 21M22353-331#21574#21905
21M → 35K6273-267#21905#22172
35K → 23M12732+95#22172#22077
23M → 24M2500+250#22077#21827
24M → 40K2160+216#21827#21611
40K → 25.2M891+88#21611#21523
25.2M → Finish2270+227#21523#21296
TOTALS13346784-5450
📊

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