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BOSTON MARATHON 2025

Hsiu Chiung Liu

Bib: 21213•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F55-59)
#0 / 994
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
8:11/mi
25:25
↑ 97↓ 3451.5%
10K· 6.21 mi
8:14/mi
51:01
↑ 79↓ 1380.4%
15K· 9.32 mi
8:29/mi
1:17:22
↑ 67↓ 78
20K· 12.43 mi
8:51/mi
1:44:52
↑ 106↓ 860.1%
Half· 13.11 mi
9:05/mi
1:51:04
↑ 19↓ 370.5%
25K· 15.53 mi
9:25/mi
2:13:55
↑ 66↓ 880.2%
30K· 18.64 mi
10:34/mi
2:46:44
↑ 181↓ 1480.2%
20M
10:16/mi
3:00:41
↑ 64↓ 500.2%
21M
13:57/mi
3:14:38
↑ 106↓ 241.6%
35K· 21.75 mi
11:16/mi
3:23:04
↑ 17↓ 861.7%
23M
11:30/mi
3:37:28
↑ 23↓ 630.6%
24M
9:58/mi
3:47:26
↓ 821.3%
40K· 24.85 mi
11:00/mi
3:56:50
↓ 200.3%
25.2M
11:59/mi
4:00:58
↑ 13↓ 160.2%
Finish· 26.22 mi
10:12/mi
4:11:22
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:04
Pace8:28 /mi
2nd Half
Distance13.11 mi
Time2:20:18
Pace10:42 /mi
📊Positive Split: 26.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:4125:258:1125:25
8:11
-
10K
6.21 mi11:46:1751:018:1325:36
8:14
+0:03
15K
9.32 mi12:12:381:17:228:1826:21
8:29
+0:15
20K
12.43 mi12:40:081:44:528:2627:30
8:51
+0:22
Half
13.11 mi12:46:201:51:048:286:12
9:05
+0:14
25K
15.53 mi13:09:112:13:558:3722:51
9:25
+0:20
30K
18.64 mi13:42:002:46:448:5732:49
10:34
+1:09
20M
20.00 mi13:55:573:00:419:0213:57
10:16
-0:18
21M
21.00 mi14:09:543:14:389:1613:57
13:57
+3:41
35K
21.75 mi14:18:203:23:049:208:26
11:16
-2:41
23M
23.00 mi14:32:443:37:289:2714:24
11:30
+0:14
24M
24.00 mi14:42:423:47:269:299:58
9:58
-1:32
40K
24.85 mi14:52:063:56:509:329:24
11:00
+1:02
25.2M
25.20 mi14:56:144:00:589:344:08
11:59
+0:59
Finish
26.22 mi15:06:384:11:229:3610:24
10:12
-1:47

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

8:11 /mi

Average Pace

9:36 /mi

Slowest Pace

13:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:13:55

53% of race

Time at Steady Pace

1:07:08

27% of race

Time at Slower Pace

50:19

20% of race

Average Pace: 9:35 /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 mi11:20:4125:258:1125:25
8:11
#18000
10K
6.21 mi11:46:1751:018:1325:36
8:14
#18055
15K
9.32 mi12:12:381:17:228:1826:21
8:29
#18402
20K
12.43 mi12:40:081:44:528:2627:30
8:51
#18897
Half
13.11 mi12:46:201:51:048:286:12
9:05
#19084
25K
15.53 mi13:09:112:13:558:3722:51
9:25
#19630
30K
18.64 mi13:42:002:46:448:5732:49
10:34
#20598
20M
20.00 mi13:55:573:00:419:0213:57
10:16
#20723
21M
21.00 mi14:09:543:14:389:1613:57
13:57
#21396
35K
21.75 mi14:18:203:23:049:208:26
11:16
#21607
23M
23.00 mi14:32:443:37:289:2714:24
11:30
#21806
24M
24.00 mi14:42:423:47:269:299:58
9:58
#21779
40K
24.85 mi14:52:063:56:509:329:24
11:00
#21832
25.2M
25.20 mi14:56:144:00:589:344:08
11:59
#21858
Finish
26.22 mi15:06:384:11:229:3610:24
10:12
#21913
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi180006348634819222(Top 68%)7020(Top 57%)7020(Top 706%)
10K6.21 mi3.10 mi18055-556366-186366-1818184(Top 64%)6413(Top 52%)6413(Top 645%)
15K9.32 mi3.11 mi18402-3476570-2046570-20419222(Top 68%)7020(Top 57%)7020(Top 706%)
20K12.43 mi3.11 mi18897-4956843-2736843-27320240(Top 71%)7617(Top 62%)7617(Top 766%)
Half13.11 mi0.68 mi19084-1876954-1116954-11122203(Top 78%)8720(Top 71%)8720(Top 877%)
25K15.53 mi2.42 mi19630-5467278-3247278-32421638(Top 76%)8447(Top 69%)8447(Top 850%)
30K18.64 mi3.11 mi20598-9687867-5897867-58923080(Top 81%)9362(Top 77%)9362(Top 942%)
20M20.00 mi1.36 mi20723-1257955-887955-8821769(Top 77%)8773(Top 72%)8773(Top 883%)
21M21.00 mi1.00 mi21396-6738333-3788333-37826191(Top 92%)11148(Top 91%)11148(Top 1122%)
35K21.75 mi0.75 mi21607-2118459-1268459-12624730(Top 87%)10440(Top 85%)10440(Top 1050%)
23M23.00 mi1.25 mi21806-1998609-1508609-15024255(Top 85%)10223(Top 84%)10223(Top 1028%)
24M24.00 mi1.00 mi21779+278619-108619-1021293(Top 75%)8751(Top 72%)8751(Top 880%)
40K24.85 mi0.85 mi21832-538670-518670-5123145(Top 81%)9775(Top 80%)9775(Top 983%)
25.2M25.20 mi0.35 mi21858-268691-218691-2123217(Top 82%)9768(Top 80%)9768(Top 983%)
Finish26.22 mi1.02 mi21913-558730-398730-3923547(Top 83%)9946(Top 81%)9946(Top 1001%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21story building
+97ft-345ft

Overall

19222

Females

7020

F55-59

7020

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

18184

Females

6413

F55-59

6413

10K→15K

6.2 - 9.3 mi

Top 68%
×3story building
+67ft-78ft

Overall

19222

Females

7020

F55-59

7020

15K→20K

9.3 - 12.4 mi

Top 71%
×5story building
+106ft-86ft

Overall

20240

Females

7617

F55-59

7617

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

22203

Females

8720

F55-59

8720

Half→25K

13.1 - 15.5 mi

Top 76%
×4story building
+66ft-88ft

Overall

21638

Females

8447

F55-59

8447

25K→30K

15.5 - 18.6 mi

Top 81%
×9story building
+181ft-148ft

Overall

23080

Females

9362

F55-59

9362

30K→20M

18.6 - 20.0 mi

Top 77%
×5story building
+64ft-50ft

Overall

21769

Females

8773

F55-59

8773

20M→21M

20.0 - 21.0 mi

Top 92%
×8story building
+106ft-24ft

Overall

26191

Females

11148

F55-59

11148

21M→35K

21.0 - 21.8 mi

Top 87%
×7story building
+17ft-86ft

Overall

24730

Females

10440

F55-59

10440

35K→23M

21.8 - 23.0 mi

Top 85%
×5story building
+23ft-63ft

Overall

24255

Females

10223

F55-59

10223

23M→24M

23.0 - 24.0 mi

Top 75%
×6story building
+12ft-82ft

Overall

21293

Females

8751

F55-59

8751

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

23145

Females

9775

F55-59

9775

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

23217

Females

9768

F55-59

9768

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2story building
+22ft-21ft

Overall

23547

Females

9946

F55-59

9946

Passing Analysis

Category:
Athletes Passed
808
Passed By
4721
Net Change
-3913
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18000
5K → 10K260315-55#18000#18055
10K → 15K91438-347#18055#18402
15K → 20K80575-495#18402#18897
20K → Half5192-187#18897#19084
Half → 25K49595-546#19084#19630
25K → 30K581026-968#19630#20598
30K → 20M65190-125#20598#20723
20M → 21M11684-673#20723#21396
21M → 35K16227-211#21396#21607
35K → 23M37236-199#21607#21806
23M → 24M6134+27#21806#21779
24M → 40K2982-53#21779#21832
40K → 25.2M1743-26#21832#21858
25.2M → Finish2984-55#21858#21913
TOTALS8084721-3913
📊

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