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BOSTON MARATHON 2025

Uyen-Phuong Nguyen

MA

Bib: 17936 F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 42%
Gender (Female)
#0 / 12228
Top 26%
Division (F18-39)
#0 / 5469
Top 44%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:43/mi
23:59
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:36/mi
47:35
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:37/mi
1:11:14
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:34/mi
1:34:43
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:26/mi
1:39:47
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:33/mi
1:58:05
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:10/mi
2:23:28
↑ 181↓ 1480.2%
138 ft elev
20M
8:18/mi
2:34:45
↑ 64↓ 500.2%
148 ft elev
21M
8:27/mi
2:43:12
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:08/mi
2:49:17
↑ 17↓ 861.7%
156 ft elev
23M
8:24/mi
2:59:48
↑ 23↓ 630.6%
116 ft elev
24M
8:00/mi
3:07:48
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:22/mi
3:14:57
↓ 200.3%
20 ft elev
25.2M
8:59/mi
3:18:03
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:26/mi
3:25:37
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:39:477:37 /mi⚡ faster
2nd Half
1:45:508:04 /mi+6.1%
Positive split — 6.1% slower in the second half
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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:2423:597:4323:59
7:43
-
10K
6.21 mi11:38:0047:357:3923:36
7:36
-0:07
15K
9.32 mi12:01:391:11:147:3923:39
7:37
+0:01
20K
12.43 mi12:25:081:34:437:3723:29
7:34
-0:03
Half
13.11 mi12:30:121:39:477:375:04
7:26
-0:08
25K
15.53 mi12:48:301:58:057:3618:18
7:33
+0:07
30K
18.64 mi13:13:532:23:287:4225:23
8:10
+0:37
20M
20.00 mi13:25:102:34:457:4411:17
8:18
+0:08
21M
21.00 mi13:33:372:43:127:468:27
8:27
+0:09
35K
21.75 mi13:39:422:49:177:476:05
8:08
-0:19
23M
23.00 mi13:50:132:59:487:4910:31
8:24
+0:16
24M
24.00 mi13:58:133:07:487:508:00
8:00
-0:24
40K
24.85 mi14:05:223:14:577:517:09
8:22
+0:22
25.2M
25.20 mi14:08:283:18:037:523:06
8:59
+0:37
Finish
26.22 mi14:16:023:25:377:517:34
7:26
-1:33

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

7:26 /mi

Average Pace

7:51 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:39

61% of race

Time at Steady Pace

39:28

19% of race

Time at Slower Pace

40:30

20% of race

Average Pace: 7:51 /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 mi11:14:2423:597:4323:59
7:43
#14139
10K
6.21 mi11:38:0047:357:3923:36
7:36
#13579
15K
9.32 mi12:01:391:11:147:3923:39
7:37
#13258
20K
12.43 mi12:25:081:34:437:3723:29
7:34
#12681
Half
13.11 mi12:30:121:39:477:375:04
7:26
#12589
25K
15.53 mi12:48:301:58:057:3618:18
7:33
#12199
30K
18.64 mi13:13:532:23:287:4225:23
8:10
#12236
20M
20.00 mi13:25:102:34:457:4411:17
8:18
#12221
21M
21.00 mi13:33:372:43:127:468:27
8:27
#12076
35K
21.75 mi13:39:422:49:177:476:05
8:08
#12097
23M
23.00 mi13:50:132:59:487:4910:31
8:24
#12102
24M
24.00 mi13:58:133:07:487:508:00
8:00
#12054
40K
24.85 mi14:05:223:14:577:517:09
8:22
#12053
25.2M
25.20 mi14:08:283:18:037:523:06
8:59
#12030
Finish
26.22 mi14:16:023:25:377:517:34
7:26
#11873
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi14139399539951271432863286
10K6.21 mi3.10 mi13579+5603695+3003695+3001299833653365
15K9.32 mi3.11 mi13258+3213547+1483547+1481271432863286
20K12.43 mi3.11 mi12681+5773256+2913256+2911124926072607
Half13.11 mi0.68 mi12589+923201+553201+551119425352535
25K15.53 mi2.42 mi12199+3903021+1803021+1801037522792279
30K18.64 mi3.11 mi12236-373121-1003121-1001260136173617
20M20.00 mi1.36 mi12221+153151-303151-301251236953695
21M21.00 mi1.00 mi12076+1453111+403111+401018827032703
35K21.75 mi0.75 mi12097-213154-433154-431315042344234
23M23.00 mi1.25 mi12102-53184-303184-301269340914091
24M24.00 mi1.00 mi12054+483204-203204-201125634363436
40K24.85 mi0.85 mi12053+13236-323236-321255842114211
25.2M25.20 mi0.35 mi12030+233239-33239-31178838643864
Finish26.22 mi1.02 mi11873+1573189+503189+50871124022402

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21story building
+97ft-345ft

Overall

12714

Females

3286

F18-39

3286

5K→10K

3.1 - 6.2 mi

Top 46%
×5story building
+79ft-138ft

Overall

12998

Females

3365

F18-39

3365

10K→15K

6.2 - 9.3 mi

Top 45%
×3story building
+67ft-78ft

Overall

12714

Females

3286

F18-39

3286

15K→20K

9.3 - 12.4 mi

Top 40%
×5story building
+106ft-86ft

Overall

11249

Females

2607

F18-39

2607

20K→Half

12.4 - 13.1 mi

Top 39%
×2story building
+19ft-37ft

Overall

11194

Females

2535

F18-39

2535

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

10375

Females

2279

F18-39

2279

25K→30K

15.5 - 18.6 mi

Top 44%
×9story building
+181ft-148ft

Overall

12601

Females

3617

F18-39

3617

30K→20M

18.6 - 20.0 mi

Top 44%
×5story building
+64ft-50ft

Overall

12512

Females

3695

F18-39

3695

20M→21M

20.0 - 21.0 mi

Top 36%
×8story building
+106ft-24ft

Overall

10188

Females

2703

F18-39

2703

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

13150

Females

4234

F18-39

4234

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

12693

Females

4091

F18-39

4091

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

11256

Females

3436

F18-39

3436

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

12558

Females

4211

F18-39

4211

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11788

Females

3864

F18-39

3864

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2story building
+22ft-21ft

Overall

8711

Females

2402

F18-39

2402

Passing Analysis

Category:
Athletes Passed
3227
Passed By
961
Net Change
+2266
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14139
5K → 10K64888+560#14139#13579
10K → 15K38261+321#13579#13258
15K → 20K59215+577#13258#12681
20K → Half953+92#12681#12589
Half → 25K40111+390#12589#12199
25K → 30K236273-37#12199#12236
30K → 20M127112+15#12236#12221
20M → 21M18035+145#12221#12076
21M → 35K6081-21#12076#12097
35K → 23M104109-5#12097#12102
23M → 24M10355+48#12102#12054
24M → 40K7574+1#12054#12053
40K → 25.2M4926+23#12053#12030
25.2M → Finish17518+157#12030#11873
TOTALS3227961+2266

Passing Charts

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