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BOSTON MARATHON 2025

Chiung Wen Nian

Bib: 19777•F

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
8:32/mi
26:31
↑ 97↓ 3451.5%
10K· 6.21 mi
8:40/mi
53:28
↑ 79↓ 1380.4%
15K· 9.32 mi
8:44/mi
1:20:37
↑ 67↓ 78
20K· 12.43 mi
8:59/mi
1:48:32
↑ 106↓ 860.1%
Half· 13.11 mi
8:32/mi
1:54:21
↑ 19↓ 370.5%
25K· 15.53 mi
9:07/mi
2:16:27
↑ 66↓ 880.2%
30K· 18.64 mi
9:46/mi
2:46:48
↑ 181↓ 1480.2%
20M
10:22/mi
3:00:53
↑ 64↓ 500.2%
21M
11:06/mi
3:11:59
↑ 106↓ 241.6%
35K· 21.75 mi
9:20/mi
3:18:58
↑ 17↓ 861.7%
23M
10:27/mi
3:32:03
↑ 23↓ 630.6%
24M
9:46/mi
3:41:49
↓ 821.3%
40K· 24.85 mi
10:39/mi
3:50:55
↓ 200.3%
25.2M
12:02/mi
3:55:04
↑ 13↓ 160.2%
Finish· 26.22 mi
9:14/mi
4:04:29
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:21
Pace8:43 /mi
2nd Half
Distance13.11 mi
Time2:10:08
Pace9:56 /mi
📊Positive Split: 13.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:0726:318:3226:31
8:32
-
10K
6.21 mi11:47:0453:288:3626:57
8:40
+0:08
15K
9.32 mi12:14:131:20:378:3927:09
8:44
+0:04
20K
12.43 mi12:42:081:48:328:4427:55
8:59
+0:15
Half
13.11 mi12:47:571:54:218:435:49
8:32
-0:27
25K
15.53 mi13:10:032:16:278:4722:06
9:07
+0:35
30K
18.64 mi13:40:242:46:488:5730:21
9:46
+0:39
20M
20.00 mi13:54:293:00:539:0314:05
10:22
+0:36
21M
21.00 mi14:05:353:11:599:0911:06
11:06
+0:44
35K
21.75 mi14:12:343:18:589:096:59
9:20
-1:46
23M
23.00 mi14:25:393:32:039:1313:05
10:27
+1:07
24M
24.00 mi14:35:253:41:499:159:46
9:46
-0:41
40K
24.85 mi14:44:313:50:559:179:06
10:39
+0:53
25.2M
25.20 mi14:48:403:55:049:204:09
12:02
+1:23
Finish
26.22 mi14:58:054:04:299:209:25
9:14
-2:48

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

8:32 /mi

Average Pace

9:20 /mi

Slowest Pace

12:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:26:26

35% of race

Time at Steady Pace

1:46:32

44% of race

Time at Slower Pace

51:31

21% of race

Average Pace: 9:19 /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 mi11:20:0726:318:3226:31
8:32
#20113
10K
6.21 mi11:47:0453:288:3626:57
8:40
#20422
15K
9.32 mi12:14:131:20:378:3927:09
8:44
#20483
20K
12.43 mi12:42:081:48:328:4427:55
8:59
#20602
Half
13.11 mi12:47:571:54:218:435:49
8:32
#20543
25K
15.53 mi13:10:032:16:278:4722:06
9:07
#20543
30K
18.64 mi13:40:242:46:488:5730:21
9:46
#20617
20M
20.00 mi13:54:293:00:539:0314:05
10:22
#20774
21M
21.00 mi14:05:353:11:599:0911:06
11:06
#20838
35K
21.75 mi14:12:343:18:589:096:59
9:20
#20799
23M
23.00 mi14:25:393:32:039:1313:05
10:27
#20914
24M
24.00 mi14:35:253:41:499:159:46
9:46
#20909
40K
24.85 mi14:44:313:50:559:179:06
10:39
#20966
25.2M
25.20 mi14:48:403:55:049:204:09
12:02
#21007
Finish
26.22 mi14:58:054:04:299:209:25
9:14
#20965
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi201137568756820702(Top 73%)7832(Top 64%)7832(Top 456%)
10K6.21 mi3.10 mi20422-3097728-1607728-16020744(Top 73%)7886(Top 64%)7886(Top 459%)
15K9.32 mi3.11 mi20483-617743-157743-1520702(Top 73%)7832(Top 64%)7832(Top 456%)
20K12.43 mi3.11 mi20602-1197818-757818-7520901(Top 74%)7998(Top 65%)7998(Top 466%)
Half13.11 mi0.68 mi20543+597781+377781+3719449(Top 68%)7170(Top 59%)7170(Top 417%)
25K15.53 mi2.42 mi205437795-147795-1420434(Top 72%)7777(Top 64%)7777(Top 453%)
30K18.64 mi3.11 mi20617-747879-847879-8420892(Top 74%)8170(Top 67%)8170(Top 476%)
20M20.00 mi1.36 mi20774-1577983-1047983-10422052(Top 78%)8915(Top 73%)8915(Top 519%)
21M21.00 mi1.00 mi20838-648032-498032-4921669(Top 76%)8798(Top 72%)8798(Top 512%)
35K21.75 mi0.75 mi20799+398032803219739(Top 69%)7847(Top 64%)7847(Top 457%)
23M23.00 mi1.25 mi20914-1158117-858117-8521885(Top 77%)9005(Top 74%)9005(Top 524%)
24M24.00 mi1.00 mi20909+58132-158132-1520625(Top 73%)8406(Top 69%)8406(Top 489%)
40K24.85 mi0.85 mi20966-578181-498181-4922307(Top 79%)9361(Top 77%)9361(Top 545%)
25.2M25.20 mi0.35 mi21007-418214-338214-3323317(Top 82%)9814(Top 80%)9814(Top 571%)
Finish26.22 mi1.02 mi20965+428206+88206+820154(Top 71%)8232(Top 67%)8232(Top 479%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

20702

Females

7832

F40-44

7832

5K→10K

3.1 - 6.2 mi

Top 73%
×5story building
+79ft-138ft

Overall

20744

Females

7886

F40-44

7886

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

20702

Females

7832

F40-44

7832

15K→20K

9.3 - 12.4 mi

Top 74%
×5story building
+106ft-86ft

Overall

20901

Females

7998

F40-44

7998

20K→Half

12.4 - 13.1 mi

Top 68%
×2story building
+19ft-37ft

Overall

19449

Females

7170

F40-44

7170

Half→25K

13.1 - 15.5 mi

Top 72%
×4story building
+66ft-88ft

Overall

20434

Females

7777

F40-44

7777

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

20892

Females

8170

F40-44

8170

30K→20M

18.6 - 20.0 mi

Top 78%
×5story building
+64ft-50ft

Overall

22052

Females

8915

F40-44

8915

20M→21M

20.0 - 21.0 mi

Top 76%
×8story building
+106ft-24ft

Overall

21669

Females

8798

F40-44

8798

21M→35K

21.0 - 21.8 mi

Top 69%
×7story building
+17ft-86ft

Overall

19739

Females

7847

F40-44

7847

35K→23M

21.8 - 23.0 mi

Top 77%
×5story building
+23ft-63ft

Overall

21885

Females

9005

F40-44

9005

23M→24M

23.0 - 24.0 mi

Top 73%
×6story building
+12ft-82ft

Overall

20625

Females

8406

F40-44

8406

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

22307

Females

9361

F40-44

9361

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

23317

Females

9814

F40-44

9814

25.2M→Finish

25.2 - 26.2 mi

Top 71%
×2story building
+22ft-21ft

Overall

20154

Females

8232

F40-44

8232

Passing Analysis

Category:
Athletes Passed
1334
Passed By
2186
Net Change
-852
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20113
5K → 10K153462-309#20113#20422
10K → 15K162223-61#20422#20483
15K → 20K146265-119#20483#20602
20K → Half7415+59#20602#20543
Half → 25K1531530#20543#20543
25K → 30K202276-74#20543#20617
30K → 20M56213-157#20617#20774
20M → 21M78142-64#20774#20838
21M → 35K7132+39#20838#20799
35K → 23M59174-115#20799#20914
23M → 24M6257+5#20914#20909
24M → 40K3693-57#20909#20966
40K → 25.2M1556-41#20966#21007
25.2M → Finish6725+42#21007#20965
TOTALS13342186-852
📊

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