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BOSTON MARATHON 2025

Thieu Anh Phan

Bib: 23395•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 (F50-54)
#0 / 1303
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
9:31/mi
29:35
↑ 97↓ 3451.5%
10K· 6.21 mi
9:38/mi
59:32
↑ 79↓ 1380.4%
15K· 9.32 mi
9:23/mi
1:28:40
↑ 67↓ 78
20K· 12.43 mi
9:18/mi
1:57:34
↑ 106↓ 860.1%
Half· 13.11 mi
9:07/mi
2:03:47
↑ 19↓ 370.5%
25K· 15.53 mi
9:21/mi
2:26:28
↑ 66↓ 880.2%
30K· 18.64 mi
9:57/mi
2:57:24
↑ 181↓ 1480.2%
20M
10:01/mi
3:11:01
↑ 64↓ 500.2%
21M
10:30/mi
3:21:31
↑ 106↓ 241.6%
35K· 21.75 mi
9:25/mi
3:28:34
↑ 17↓ 861.7%
23M
9:29/mi
3:40:27
↑ 23↓ 630.6%
24M
9:19/mi
3:49:46
↓ 821.3%
40K· 24.85 mi
9:33/mi
3:57:56
↓ 200.3%
25.2M
10:09/mi
4:01:26
↑ 13↓ 160.2%
Finish· 26.22 mi
8:48/mi
4:10:24
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:47
Pace9:27 /mi
2nd Half
Distance13.11 mi
Time2:06:37
Pace9:40 /mi
📊Positive Split: 2.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:30:5029:359:3129:35
9:31
-
10K
6.21 mi12:00:4759:329:3529:57
9:38
+0:07
15K
9.32 mi12:29:551:28:409:3129:08
9:23
-0:15
20K
12.43 mi12:58:491:57:349:2828:54
9:18
-0:05
Half
13.11 mi13:05:022:03:479:276:13
9:07
-0:11
25K
15.53 mi13:27:432:26:289:2622:41
9:21
+0:14
30K
18.64 mi13:58:392:57:249:3130:56
9:57
+0:36
20M
20.00 mi14:12:163:11:019:3313:37
10:01
+0:04
21M
21.00 mi14:22:463:21:319:3610:30
10:30
+0:29
35K
21.75 mi14:29:493:28:349:357:03
9:25
-1:05
23M
23.00 mi14:41:423:40:279:3511:53
9:29
+0:04
24M
24.00 mi14:51:013:49:469:349:19
9:19
-0:10
40K
24.85 mi14:59:113:57:569:348:10
9:33
+0:14
25.2M
25.20 mi15:02:414:01:269:353:30
10:09
+0:36
Finish
26.22 mi15:11:394:10:249:338:58
8:48
-1:21

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

9:33 /mi

Slowest Pace

10:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:11:51

77% of race

Time at Steady Pace

48:03

19% of race

Time at Slower Pace

10:30

4% of race

Average Pace: 9:33 /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 mi11:30:5029:359:3129:35
9:31
#24316
10K
6.21 mi12:00:4759:329:3529:57
9:38
#24402
15K
9.32 mi12:29:551:28:409:3129:08
9:23
#24075
20K
12.43 mi12:58:491:57:349:2828:54
9:18
#23640
Half
13.11 mi13:05:022:03:479:276:13
9:07
#23597
25K
15.53 mi13:27:432:26:289:2622:41
9:21
#23203
30K
18.64 mi13:58:392:57:249:3130:56
9:57
#22846
20M
20.00 mi14:12:163:11:019:3313:37
10:01
#22713
21M
21.00 mi14:22:463:21:319:3610:30
10:30
#22551
35K
21.75 mi14:29:493:28:349:357:03
9:25
#22454
23M
23.00 mi14:41:423:40:279:3511:53
9:29
#22231
24M
24.00 mi14:51:013:49:469:349:19
9:19
#22103
40K
24.85 mi14:59:113:57:569:348:10
9:33
#21980
25.2M
25.20 mi15:02:414:01:269:353:30
10:09
#21917
Finish
26.22 mi15:11:394:10:249:338:58
8:48
#21793
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi243169857985723417(Top 82%)9325(Top 76%)9325(Top 716%)
10K6.21 mi3.10 mi24402-869897-409897-4024462(Top 86%)9942(Top 81%)9942(Top 763%)
15K9.32 mi3.11 mi24075+3279718+1799718+17923417(Top 82%)9325(Top 76%)9325(Top 716%)
20K12.43 mi3.11 mi23640+4359478+2409478+24022283(Top 78%)8744(Top 72%)8744(Top 671%)
Half13.11 mi0.68 mi23597+439460+189460+1822291(Top 78%)8773(Top 72%)8773(Top 673%)
25K15.53 mi2.42 mi23203+3949241+2199241+21921394(Top 75%)8306(Top 68%)8306(Top 637%)
30K18.64 mi3.11 mi22846+3579096+1459096+14521478(Top 76%)8493(Top 69%)8493(Top 652%)
20M20.00 mi1.36 mi22713+1339054+429054+4221028(Top 74%)8377(Top 69%)8377(Top 643%)
21M21.00 mi1.00 mi22551+1628973+818973+8120033(Top 71%)7930(Top 65%)7930(Top 609%)
35K21.75 mi0.75 mi22454+978934+398934+3920080(Top 71%)8030(Top 66%)8030(Top 616%)
23M23.00 mi1.25 mi22231+2238847+878847+8718695(Top 66%)7355(Top 60%)7355(Top 564%)
24M24.00 mi1.00 mi22103+1288792+558792+5518917(Top 67%)7517(Top 61%)7517(Top 577%)
40K24.85 mi0.85 mi21980+1238745+478745+4718943(Top 67%)7613(Top 62%)7613(Top 584%)
25.2M25.20 mi0.35 mi21917+638720+258720+2517781(Top 63%)7033(Top 58%)7033(Top 540%)
Finish26.22 mi1.02 mi21793+1248668+528668+5218086(Top 64%)7143(Top 58%)7143(Top 548%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

23417

Females

9325

F50-54

9325

5K→10K

3.1 - 6.2 mi

Top 86%
×5story building
+79ft-138ft

Overall

24462

Females

9942

F50-54

9942

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

23417

Females

9325

F50-54

9325

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

22283

Females

8744

F50-54

8744

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

22291

Females

8773

F50-54

8773

Half→25K

13.1 - 15.5 mi

Top 75%
×4story building
+66ft-88ft

Overall

21394

Females

8306

F50-54

8306

25K→30K

15.5 - 18.6 mi

Top 76%
×9story building
+181ft-148ft

Overall

21478

Females

8493

F50-54

8493

30K→20M

18.6 - 20.0 mi

Top 74%
×5story building
+64ft-50ft

Overall

21028

Females

8377

F50-54

8377

20M→21M

20.0 - 21.0 mi

Top 71%
×8story building
+106ft-24ft

Overall

20033

Females

7930

F50-54

7930

21M→35K

21.0 - 21.8 mi

Top 71%
×7story building
+17ft-86ft

Overall

20080

Females

8030

F50-54

8030

35K→23M

21.8 - 23.0 mi

Top 66%
×5story building
+23ft-63ft

Overall

18695

Females

7355

F50-54

7355

23M→24M

23.0 - 24.0 mi

Top 67%
×6story building
+12ft-82ft

Overall

18917

Females

7517

F50-54

7517

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

18943

Females

7613

F50-54

7613

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

17781

Females

7033

F50-54

7033

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2story building
+22ft-21ft

Overall

18086

Females

7143

F50-54

7143

Passing Analysis

Category:
Athletes Passed
2918
Passed By
395
Net Change
+2523
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24316
5K → 10K183269-86#24316#24402
10K → 15K35730+327#24402#24075
15K → 20K4416+435#24075#23640
20K → Half474+43#23640#23597
Half → 25K3995+394#23597#23203
25K → 30K38427+357#23203#22846
30K → 20M15320+133#22846#22713
20M → 21M17412+162#22713#22551
21M → 35K1025+97#22551#22454
35K → 23M2252+223#22454#22231
23M → 24M1291+128#22231#22103
24M → 40K1318+123#22103#21980
40K → 25.2M652+63#21980#21917
25.2M → Finish1284+124#21917#21793
TOTALS2918395+2523
📊

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