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BOSTON MARATHON 2025

Rayleen Hsu

Bib: 19413•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 (F45-49)
#0 / 1813
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
8:51/mi
27:29
↑ 97↓ 3451.5%
10K· 6.21 mi
8:57/mi
55:18
↑ 79↓ 1380.4%
15K· 9.32 mi
8:56/mi
1:23:03
↑ 67↓ 78
20K· 12.43 mi
9:06/mi
1:51:18
↑ 106↓ 860.1%
Half· 13.11 mi
8:52/mi
1:57:21
↑ 19↓ 370.5%
25K· 15.53 mi
9:29/mi
2:20:21
↑ 66↓ 880.2%
30K· 18.64 mi
9:54/mi
2:51:05
↑ 181↓ 1480.2%
20M
10:20/mi
3:05:08
↑ 64↓ 500.2%
21M
10:12/mi
3:15:20
↑ 106↓ 241.6%
35K· 21.75 mi
9:28/mi
3:22:25
↑ 17↓ 861.7%
23M
9:46/mi
3:34:39
↑ 23↓ 630.6%
24M
9:55/mi
3:44:34
↓ 821.3%
40K· 24.85 mi
9:45/mi
3:52:54
↓ 200.3%
25.2M
10:29/mi
3:56:31
↑ 13↓ 160.2%
Finish· 26.22 mi
8:48/mi
4:05:29
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:21
Pace8:57 /mi
2nd Half
Distance13.11 mi
Time2:08:08
Pace9:46 /mi
📊Positive Split: 9.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:5827:298:5127:29
8:51
-
10K
6.21 mi11:46:4755:188:5427:49
8:57
+0:06
15K
9.32 mi12:14:321:23:038:5527:45
8:56
-0:01
20K
12.43 mi12:42:471:51:188:5728:15
9:06
+0:10
Half
13.11 mi12:48:501:57:218:576:03
8:52
-0:14
25K
15.53 mi13:11:502:20:219:0223:00
9:29
+0:37
30K
18.64 mi13:42:342:51:059:1130:44
9:54
+0:25
20M
20.00 mi13:56:373:05:089:1514:03
10:20
+0:26
21M
21.00 mi14:06:493:15:209:1810:12
10:12
-0:08
35K
21.75 mi14:13:543:22:259:187:05
9:28
-0:44
23M
23.00 mi14:26:083:34:399:2012:14
9:46
+0:18
24M
24.00 mi14:36:033:44:349:219:55
9:55
+0:09
40K
24.85 mi14:44:233:52:549:228:20
9:45
-0:10
25.2M
25.20 mi14:48:003:56:319:233:37
10:29
+0:44
Finish
26.22 mi14:56:584:05:299:228:58
8:48
-1:41

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

8:48 /mi

Average Pace

9:22 /mi

Slowest Pace

10:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:36:24

64% of race

Time at Steady Pace

1:25:28

35% of race

Time at Slower Pace

3:37

1% of race

Average Pace: 9:22 /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 mi11:18:5827:298:5127:29
8:51
#21745
10K
6.21 mi11:46:4755:188:5427:49
8:57
#21960
15K
9.32 mi12:14:321:23:038:5527:45
8:56
#21865
20K
12.43 mi12:42:471:51:188:5728:15
9:06
#21737
Half
13.11 mi12:48:501:57:218:576:03
8:52
#21698
25K
15.53 mi13:11:502:20:219:0223:00
9:29
#21720
30K
18.64 mi13:42:342:51:059:1130:44
9:54
#21660
20M
20.00 mi13:56:373:05:089:1514:03
10:20
#21709
21M
21.00 mi14:06:493:15:209:1810:12
10:12
#21540
35K
21.75 mi14:13:543:22:259:187:05
9:28
#21495
23M
23.00 mi14:26:083:34:399:2012:14
9:46
#21362
24M
24.00 mi14:36:033:44:349:219:55
9:55
#21347
40K
24.85 mi14:44:233:52:549:228:20
9:45
#21263
25.2M
25.20 mi14:48:003:56:319:233:37
10:29
#21224
Finish
26.22 mi14:56:584:05:299:228:58
8:48
#21118
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi217458485848521714(Top 76%)8386(Top 69%)8386(Top 463%)
10K6.21 mi3.10 mi21960-2158586-1018586-10122183(Top 78%)8699(Top 71%)8699(Top 480%)
15K9.32 mi3.11 mi21865+958526+608526+6021714(Top 76%)8386(Top 69%)8386(Top 463%)
20K12.43 mi3.11 mi21737+1288457+698457+6921414(Top 75%)8269(Top 68%)8269(Top 456%)
Half13.11 mi0.68 mi21698+398436+218436+2121281(Top 75%)8195(Top 67%)8195(Top 452%)
25K15.53 mi2.42 mi21720-228454-188454-1821814(Top 77%)8548(Top 70%)8548(Top 471%)
30K18.64 mi3.11 mi21660+608437+178437+1721280(Top 75%)8390(Top 69%)8390(Top 463%)
20M20.00 mi1.36 mi21709-498470-338470-3321982(Top 77%)8879(Top 73%)8879(Top 490%)
21M21.00 mi1.00 mi21540+1698412+588412+5819046(Top 67%)7358(Top 60%)7358(Top 406%)
35K21.75 mi0.75 mi21495+458398+148398+1420248(Top 71%)8106(Top 66%)8106(Top 447%)
23M23.00 mi1.25 mi21362+1338355+438355+4319702(Top 69%)7891(Top 65%)7891(Top 435%)
24M24.00 mi1.00 mi21347+158370-158370-1521123(Top 74%)8668(Top 71%)8668(Top 478%)
40K24.85 mi0.85 mi21263+848347+238347+2319654(Top 69%)7975(Top 65%)7975(Top 440%)
25.2M25.20 mi0.35 mi21224+398333+148333+1419015(Top 67%)7654(Top 63%)7654(Top 422%)
Finish26.22 mi1.02 mi21118+1068286+478286+4718084(Top 64%)7141(Top 58%)7141(Top 394%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

21714

Females

8386

F45-49

8386

5K→10K

3.1 - 6.2 mi

Top 78%
×5story building
+79ft-138ft

Overall

22183

Females

8699

F45-49

8699

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

21714

Females

8386

F45-49

8386

15K→20K

9.3 - 12.4 mi

Top 75%
×5story building
+106ft-86ft

Overall

21414

Females

8269

F45-49

8269

20K→Half

12.4 - 13.1 mi

Top 75%
×2story building
+19ft-37ft

Overall

21281

Females

8195

F45-49

8195

Half→25K

13.1 - 15.5 mi

Top 77%
×4story building
+66ft-88ft

Overall

21814

Females

8548

F45-49

8548

25K→30K

15.5 - 18.6 mi

Top 75%
×9story building
+181ft-148ft

Overall

21280

Females

8390

F45-49

8390

30K→20M

18.6 - 20.0 mi

Top 77%
×5story building
+64ft-50ft

Overall

21982

Females

8879

F45-49

8879

20M→21M

20.0 - 21.0 mi

Top 67%
×8story building
+106ft-24ft

Overall

19046

Females

7358

F45-49

7358

21M→35K

21.0 - 21.8 mi

Top 71%
×7story building
+17ft-86ft

Overall

20248

Females

8106

F45-49

8106

35K→23M

21.8 - 23.0 mi

Top 69%
×5story building
+23ft-63ft

Overall

19702

Females

7891

F45-49

7891

23M→24M

23.0 - 24.0 mi

Top 74%
×6story building
+12ft-82ft

Overall

21123

Females

8668

F45-49

8668

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

19654

Females

7975

F45-49

7975

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

19015

Females

7654

F45-49

7654

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2story building
+22ft-21ft

Overall

18084

Females

7141

F45-49

7141

Passing Analysis

Category:
Athletes Passed
1896
Passed By
1269
Net Change
+627
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21745
5K → 10K178393-215#21745#21960
10K → 15K240145+95#21960#21865
15K → 20K250122+128#21865#21737
20K → Half5617+39#21737#21698
Half → 25K142164-22#21698#21720
25K → 30K228168+60#21720#21660
30K → 20M71120-49#21660#21709
20M → 21M1778+169#21709#21540
21M → 35K7833+45#21540#21495
35K → 23M16431+133#21495#21362
23M → 24M5742+15#21362#21347
24M → 40K9915+84#21347#21263
40K → 25.2M434+39#21263#21224
25.2M → Finish1137+106#21224#21118
TOTALS18961269+627
📊

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