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BOSTON MARATHON 2025

Angela Xu

Bib: 15559•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 48%
Gender (Female)
#0 / 12228
Top 34%
Division (F18-39)
#0 / 5469
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
7:53/mi
24:28
↑ 97↓ 3451.5%
10K· 6.21 mi
7:56/mi
49:06
↑ 79↓ 1380.4%
15K· 9.32 mi
7:55/mi
1:13:42
↑ 67↓ 78
20K· 12.43 mi
8:00/mi
1:38:34
↑ 106↓ 860.1%
Half· 13.11 mi
7:59/mi
1:44:01
↑ 19↓ 370.5%
25K· 15.53 mi
8:04/mi
2:03:34
↑ 66↓ 880.2%
30K· 18.64 mi
8:14/mi
2:29:10
↑ 181↓ 1480.2%
20M
8:20/mi
2:40:29
↑ 64↓ 500.2%
21M
8:49/mi
2:49:18
↑ 106↓ 241.6%
35K· 21.75 mi
8:07/mi
2:55:22
↑ 17↓ 861.7%
23M
8:19/mi
3:05:47
↑ 23↓ 630.6%
24M
8:06/mi
3:13:53
↓ 821.3%
40K· 24.85 mi
8:05/mi
3:20:48
↓ 200.3%
25.2M
8:48/mi
3:23:50
↑ 13↓ 160.2%
Finish· 26.22 mi
7:39/mi
3:31:38
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:01
Pace7:56 /mi
2nd Half
Distance13.11 mi
Time1:47:37
Pace8:13 /mi
📊Positive Split: 3.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:1224:287:5324:28
7:53
-
10K
6.21 mi11:20:5049:067:5424:38
7:56
+0:03
15K
9.32 mi11:45:261:13:427:5424:36
7:55
-0:01
20K
12.43 mi12:10:181:38:347:5624:52
8:00
+0:05
Half
13.11 mi12:15:451:44:017:565:27
7:59
-0:01
25K
15.53 mi12:35:182:03:347:5719:33
8:04
+0:05
30K
18.64 mi13:00:542:29:108:0025:36
8:14
+0:10
20M
20.00 mi13:12:132:40:298:0111:19
8:20
+0:06
21M
21.00 mi13:21:022:49:188:048:49
8:49
+0:29
35K
21.75 mi13:27:062:55:228:046:04
8:07
-0:42
23M
23.00 mi13:37:313:05:478:0510:25
8:19
+0:12
24M
24.00 mi13:45:373:13:538:058:06
8:06
-0:13
40K
24.85 mi13:52:323:20:488:056:55
8:05
-0:01
25.2M
25.20 mi13:55:343:23:508:053:02
8:48
+0:43
Finish
26.22 mi14:03:223:31:388:057:48
7:39
-1:09

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

7:39 /mi

Average Pace

8:05 /mi

Slowest Pace

8:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:19:47

94% of race

Time at Steady Pace

11:51

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:04 /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 mi10:56:1224:287:5324:28
7:53
#15481
10K
6.21 mi11:20:5049:067:5424:38
7:56
#15693
15K
9.32 mi11:45:261:13:427:5424:36
7:55
#15559
20K
12.43 mi12:10:181:38:347:5624:52
8:00
#15388
Half
13.11 mi12:15:451:44:017:565:27
7:59
#15393
25K
15.53 mi12:35:182:03:347:5719:33
8:04
#15197
30K
18.64 mi13:00:542:29:108:0025:36
8:14
#14751
20M
20.00 mi13:12:132:40:298:0111:19
8:20
#14526
21M
21.00 mi13:21:022:49:188:048:49
8:49
#14368
35K
21.75 mi13:27:062:55:228:046:04
8:07
#14310
23M
23.00 mi13:37:313:05:478:0510:25
8:19
#14163
24M
24.00 mi13:45:373:13:538:058:06
8:06
#14048
40K
24.85 mi13:52:323:20:488:056:55
8:05
#13885
25.2M
25.20 mi13:55:343:23:508:053:02
8:48
#13798
Finish
26.22 mi14:03:223:31:388:057:48
7:39
#13652
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi154814822482215385(Top 54%)4801(Top 39%)4801(Top 88%)
10K6.21 mi3.10 mi15693-2124953-1314953-13115906(Top 56%)5069(Top 41%)5069(Top 93%)
15K9.32 mi3.11 mi15559+1344878+754878+7515385(Top 54%)4801(Top 39%)4801(Top 88%)
20K12.43 mi3.11 mi15388+1714802+764802+7614969(Top 53%)4629(Top 38%)4629(Top 85%)
Half13.11 mi0.68 mi15393-54802480215811(Top 56%)5046(Top 41%)5046(Top 92%)
25K15.53 mi2.42 mi15197+1964720+824720+8214377(Top 51%)4412(Top 36%)4412(Top 81%)
30K18.64 mi3.11 mi14751+4464532+1884532+18813119(Top 46%)3897(Top 32%)3897(Top 71%)
20M20.00 mi1.36 mi14526+2254431+1014431+10112699(Top 45%)3809(Top 31%)3809(Top 70%)
21M21.00 mi1.00 mi14368+1584363+684363+6812433(Top 44%)3826(Top 31%)3826(Top 70%)
35K21.75 mi0.75 mi14310+584347+164347+1613023(Top 46%)4171(Top 34%)4171(Top 76%)
23M23.00 mi1.25 mi14163+1474320+274320+2712182(Top 43%)3839(Top 31%)3839(Top 70%)
24M24.00 mi1.00 mi14048+1154290+304290+3011935(Top 42%)3774(Top 31%)3774(Top 69%)
40K24.85 mi0.85 mi13885+1634234+564234+5610829(Top 38%)3338(Top 27%)3338(Top 61%)
25.2M25.20 mi0.35 mi13798+874194+404194+4010710(Top 38%)3366(Top 28%)3366(Top 62%)
Finish26.22 mi1.02 mi13652+1464126+684126+6810396(Top 37%)3182(Top 26%)3182(Top 58%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

15385

Females

4801

F18-39

4801

5K→10K

3.1 - 6.2 mi

Top 56%
×5story building
+79ft-138ft

Overall

15906

Females

5069

F18-39

5069

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

15385

Females

4801

F18-39

4801

15K→20K

9.3 - 12.4 mi

Top 53%
×5story building
+106ft-86ft

Overall

14969

Females

4629

F18-39

4629

20K→Half

12.4 - 13.1 mi

Top 56%
×2story building
+19ft-37ft

Overall

15811

Females

5046

F18-39

5046

Half→25K

13.1 - 15.5 mi

Top 51%
×4story building
+66ft-88ft

Overall

14377

Females

4412

F18-39

4412

25K→30K

15.5 - 18.6 mi

Top 46%
×9story building
+181ft-148ft

Overall

13119

Females

3897

F18-39

3897

30K→20M

18.6 - 20.0 mi

Top 45%
×5story building
+64ft-50ft

Overall

12699

Females

3809

F18-39

3809

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

12433

Females

3826

F18-39

3826

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

13023

Females

4171

F18-39

4171

35K→23M

21.8 - 23.0 mi

Top 43%
×5story building
+23ft-63ft

Overall

12182

Females

3839

F18-39

3839

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

11935

Females

3774

F18-39

3774

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10829

Females

3338

F18-39

3338

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10710

Females

3366

F18-39

3366

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2story building
+22ft-21ft

Overall

10396

Females

3182

F18-39

3182

Passing Analysis

Category:
Athletes Passed
2879
Passed By
1050
Net Change
+1829
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15481
5K → 10K228440-212#15481#15693
10K → 15K275141+134#15693#15559
15K → 20K283112+171#15559#15388
20K → Half3439-5#15388#15393
Half → 25K26771+196#15393#15197
25K → 30K49751+446#15197#14751
30K → 20M26136+225#14751#14526
20M → 21M19739+158#14526#14368
21M → 35K8628+58#14368#14310
35K → 23M19447+147#14310#14163
23M → 24M14227+115#14163#14048
24M → 40K17310+163#14048#13885
40K → 25.2M870+87#13885#13798
25.2M → Finish1559+146#13798#13652
TOTALS28791050+1829
📊

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