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BOSTON MARATHON 2025

Lynnette Nguyen

Bib: 20225•F

OR

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 49%
Masters (Masters Women)
#0 / 6759
Top 38%
Division (F50-54)
#0 / 1303
Top 32%
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
7:55/mi
24:35
↑ 97↓ 3451.5%
10K· 6.21 mi
7:57/mi
49:18
↑ 79↓ 1380.4%
15K· 9.32 mi
8:03/mi
1:14:19
↑ 67↓ 78
20K· 12.43 mi
8:12/mi
1:39:47
↑ 106↓ 860.1%
Half· 13.11 mi
7:55/mi
1:45:11
↑ 19↓ 370.5%
25K· 15.53 mi
8:24/mi
2:05:34
↑ 66↓ 880.2%
30K· 18.64 mi
8:55/mi
2:33:15
↑ 181↓ 1480.2%
20M
8:59/mi
2:45:27
↑ 64↓ 500.2%
21M
10:09/mi
2:55:36
↑ 106↓ 241.6%
35K· 21.75 mi
8:33/mi
3:02:00
↑ 17↓ 861.7%
23M
9:33/mi
3:13:58
↑ 23↓ 630.6%
24M
8:51/mi
3:22:49
↓ 821.3%
40K· 24.85 mi
9:32/mi
3:30:58
↓ 200.3%
25.2M
11:07/mi
3:34:48
↑ 13↓ 160.2%
Finish· 26.22 mi
9:34/mi
3:44:33
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:11
Pace8:01 /mi
2nd Half
Distance13.11 mi
Time1:59:22
Pace9:06 /mi
📊Positive Split: 13.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:0924:357:5524:35
7:55
-
10K
6.21 mi11:40:5249:187:5624:43
7:57
+0:02
15K
9.32 mi12:05:531:14:197:5825:01
8:03
+0:06
20K
12.43 mi12:31:211:39:478:0225:28
8:12
+0:09
Half
13.11 mi12:36:451:45:118:015:24
7:55
-0:17
25K
15.53 mi12:57:082:05:348:0520:23
8:24
+0:29
30K
18.64 mi13:24:492:33:158:1327:41
8:55
+0:31
20M
20.00 mi13:37:012:45:278:1612:12
8:59
+0:04
21M
21.00 mi13:47:102:55:368:2210:09
10:09
+1:10
35K
21.75 mi13:53:343:02:008:226:24
8:33
-1:36
23M
23.00 mi14:05:323:13:588:2611:58
9:33
+1:00
24M
24.00 mi14:14:233:22:498:278:51
8:51
-0:42
40K
24.85 mi14:22:323:30:588:298:09
9:32
+0:41
25.2M
25.20 mi14:26:223:34:488:313:50
11:07
+1:35
Finish
26.22 mi14:36:073:44:338:349:45
9:34
-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

7:55 /mi

Average Pace

8:34 /mi

Slowest Pace

11:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:11

47% of race

Time at Steady Pace

1:15:31

34% of race

Time at Slower Pace

43:51

20% of race

Average Pace: 8:34 /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 mi11:16:0924:357:5524:35
7:55
#15841
10K
6.21 mi11:40:5249:187:5624:43
7:57
#15969
15K
9.32 mi12:05:531:14:197:5825:01
8:03
#16115
20K
12.43 mi12:31:211:39:478:0225:28
8:12
#16168
Half
13.11 mi12:36:451:45:118:015:24
7:55
#16130
25K
15.53 mi12:57:082:05:348:0520:23
8:24
#16196
30K
18.64 mi13:24:492:33:158:1327:41
8:55
#16352
20M
20.00 mi13:37:012:45:278:1612:12
8:59
#16327
21M
21.00 mi13:47:102:55:368:2210:09
10:09
#16472
35K
21.75 mi13:53:343:02:008:226:24
8:33
#16407
23M
23.00 mi14:05:323:13:588:2611:58
9:33
#16560
24M
24.00 mi14:14:233:22:498:278:51
8:51
#16561
40K
24.85 mi14:22:323:30:588:298:09
9:32
#16661
25.2M
25.20 mi14:26:223:34:488:313:50
11:07
#16765
Finish
26.22 mi14:36:073:44:338:349:45
9:34
#17021
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi158415050505016440(Top 58%)5404(Top 44%)5404(Top 415%)
10K6.21 mi3.10 mi15969-1285119-695119-6916135(Top 57%)5206(Top 43%)5206(Top 400%)
15K9.32 mi3.11 mi16115-1465207-885207-8816440(Top 58%)5404(Top 44%)5404(Top 415%)
20K12.43 mi3.11 mi16168-535254-475254-4716304(Top 57%)5391(Top 44%)5391(Top 414%)
Half13.11 mi0.68 mi16130+385236+185236+1815309(Top 54%)4806(Top 39%)4806(Top 369%)
25K15.53 mi2.42 mi16196-665276-405276-4016631(Top 59%)5651(Top 46%)5651(Top 434%)
30K18.64 mi3.11 mi16352-1565445-1695445-16917216(Top 61%)6142(Top 50%)6142(Top 471%)
20M20.00 mi1.36 mi16327+255448-35448-316688(Top 59%)5966(Top 49%)5966(Top 458%)
21M21.00 mi1.00 mi16472-1455570-1225570-12218867(Top 66%)7265(Top 59%)7265(Top 558%)
35K21.75 mi0.75 mi16407+655547+235547+2315842(Top 56%)5699(Top 47%)5699(Top 437%)
23M23.00 mi1.25 mi16560-1535672-1255672-12518931(Top 67%)7472(Top 61%)7472(Top 573%)
24M24.00 mi1.00 mi16561-15694-225694-2216608(Top 58%)6270(Top 51%)6270(Top 481%)
40K24.85 mi0.85 mi16661-1005792-985792-9818848(Top 66%)7548(Top 62%)7548(Top 579%)
25.2M25.20 mi0.35 mi16765-1045869-775869-7721002(Top 74%)8646(Top 71%)8646(Top 664%)
Finish26.22 mi1.02 mi17021-2566032-1636032-16321436(Top 75%)8874(Top 73%)8874(Top 681%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21story building
+97ft-345ft

Overall

16440

Females

5404

F50-54

5404

5K→10K

3.1 - 6.2 mi

Top 57%
×5story building
+79ft-138ft

Overall

16135

Females

5206

F50-54

5206

10K→15K

6.2 - 9.3 mi

Top 58%
×3story building
+67ft-78ft

Overall

16440

Females

5404

F50-54

5404

15K→20K

9.3 - 12.4 mi

Top 57%
×5story building
+106ft-86ft

Overall

16304

Females

5391

F50-54

5391

20K→Half

12.4 - 13.1 mi

Top 54%
×2story building
+19ft-37ft

Overall

15309

Females

4806

F50-54

4806

Half→25K

13.1 - 15.5 mi

Top 59%
×4story building
+66ft-88ft

Overall

16631

Females

5651

F50-54

5651

25K→30K

15.5 - 18.6 mi

Top 61%
×9story building
+181ft-148ft

Overall

17216

Females

6142

F50-54

6142

30K→20M

18.6 - 20.0 mi

Top 59%
×5story building
+64ft-50ft

Overall

16688

Females

5966

F50-54

5966

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

18867

Females

7265

F50-54

7265

21M→35K

21.0 - 21.8 mi

Top 56%
×7story building
+17ft-86ft

Overall

15842

Females

5699

F50-54

5699

35K→23M

21.8 - 23.0 mi

Top 67%
×5story building
+23ft-63ft

Overall

18931

Females

7472

F50-54

7472

23M→24M

23.0 - 24.0 mi

Top 58%
×6story building
+12ft-82ft

Overall

16608

Females

6270

F50-54

6270

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18848

Females

7548

F50-54

7548

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

21002

Females

8646

F50-54

8646

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2story building
+22ft-21ft

Overall

21436

Females

8874

F50-54

8874

Passing Analysis

Category:
Athletes Passed
1497
Passed By
2677
Net Change
-1180
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15841
5K → 10K262390-128#15841#15969
10K → 15K149295-146#15969#16115
15K → 20K198251-53#16115#16168
20K → Half4810+38#16168#16130
Half → 25K148214-66#16130#16196
25K → 30K176332-156#16196#16352
30K → 20M12196+25#16352#16327
20M → 21M68213-145#16327#16472
21M → 35K9025+65#16472#16407
35K → 23M77230-153#16407#16560
23M → 24M7475-1#16560#16561
24M → 40K56156-100#16561#16661
40K → 25.2M7111-104#16661#16765
25.2M → Finish23279-256#16765#17021
TOTALS14972677-1180
📊

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