Boston Marathon logo
BOSTON MARATHON 2024

Leann Nguyen

Bib: 15602•F

MO

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F45-49)
#0 / 1753
Race Day Weather
55°/45°F
scattered 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
8:46/mi
27:15
↑ 97↓ 3451.5%
10K· 6.21 mi
9:05/mi
55:27
↑ 79↓ 1380.4%
15K· 9.32 mi
9:08/mi
1:23:51
↑ 67↓ 78
20K· 12.43 mi
9:22/mi
1:52:57
↑ 106↓ 860.1%
Half· 13.11 mi
9:47/mi
1:59:38
↑ 19↓ 370.5%
25K· 15.53 mi
9:47/mi
2:23:22
↑ 66↓ 880.2%
30K· 18.64 mi
10:32/mi
2:56:06
↑ 181↓ 1480.2%
20M
11:37/mi
3:11:53
↑ 64↓ 500.2%
21M
11:37/mi
3:23:30
↑ 106↓ 241.6%
35K· 21.75 mi
9:56/mi
3:30:56
↑ 17↓ 861.7%
23M
10:36/mi
3:44:12
↑ 23↓ 630.6%
24M
10:36/mi
3:54:47
↓ 821.3%
40K· 24.85 mi
10:36/mi
4:03:51
↓ 200.3%
25.2M
10:36/mi
4:07:30
↑ 13↓ 160.2%
Finish· 26.22 mi
9:52/mi
4:17:33
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:38
Pace9:08 /mi
2nd Half
Distance13.11 mi
Time2:17:55
Pace10:31 /mi
📊Positive Split: 15.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:57:4527:158:4627:15
8:46
-
10K
6.21 mi11:25:5755:278:5528:12
9:05
+0:19
15K
9.32 mi11:54:211:23:519:0028:24
9:08
+0:03
20K
12.43 mi12:23:271:52:579:0529:06
9:22
+0:14
Half
13.11 mi12:30:081:59:389:086:41
9:47
+0:25
25K
15.53 mi12:53:522:23:229:1423:44
9:47
0:00
30K
18.64 mi13:26:362:56:069:2732:44
10:32
+0:45
20M
20.00 mi13:42:233:11:539:3615:47
11:37
+1:05
21M
21.00 mi13:54:003:23:309:4111:37
11:37
0:00
35K
21.75 mi14:01:263:30:569:427:26
9:56
-1:41
23M
23.00 mi14:14:423:44:129:4513:16
10:36
+0:40
24M
24.00 mi14:25:173:54:479:4710:35
10:36
0:00
40K
24.85 mi14:34:214:03:519:499:03
10:36
0:00
25.2M
25.20 mi14:38:004:07:309:493:39
10:36
0:00
Finish
26.22 mi14:48:034:17:339:5010:03
9:52
-0:44

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

8:46 /mi

Average Pace

9:50 /mi

Slowest Pace

11:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:52:57

44% of race

Time at Steady Pace

47:54

19% of race

Time at Slower Pace

1:36:42

38% of race

Average Pace: 9:49 /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 mi10:57:4527:158:4627:15
8:46
#19167
10K
6.21 mi11:25:5755:278:5528:12
9:05
#19578
15K
9.32 mi11:54:211:23:519:0028:24
9:08
#19554
20K
12.43 mi12:23:271:52:579:0529:06
9:22
#19336
Half
13.11 mi12:30:081:59:389:086:41
9:47
#19438
25K
15.53 mi12:53:522:23:229:1423:44
9:47
#19269
30K
18.64 mi13:26:362:56:069:2732:44
10:32
#19195
20M
20.00 mi13:42:233:11:539:3615:47
11:37
#19327
21M
21.00 mi13:54:003:23:309:4111:37
11:37
#19209
35K
21.75 mi14:01:263:30:569:427:26
9:56
#19112
23M
23.00 mi14:14:423:44:129:4513:16
10:36
#18972
24M
24.00 mi14:25:173:54:479:4710:35
10:36
#18908
40K
24.85 mi14:34:214:03:519:499:03
10:36
#18821
25.2M
25.20 mi14:38:004:07:309:493:39
10:36
#18732
Finish
26.22 mi14:48:034:17:339:5010:03
9:52
#18693
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi191677456745619488(Top 76%)7516(Top 69%)7516(Top 429%)
10K6.21 mi3.10 mi19578-4117633-1777633-17720057(Top 79%)7861(Top 72%)7861(Top 448%)
15K9.32 mi3.11 mi19554+247602+317602+3119488(Top 76%)7516(Top 69%)7516(Top 429%)
20K12.43 mi3.11 mi19336+2187483+1197483+11918780(Top 74%)7160(Top 66%)7160(Top 408%)
Half13.11 mi0.68 mi19438-1027534-517534-5120909(Top 82%)8371(Top 77%)8371(Top 478%)
25K15.53 mi2.42 mi19269+1697449+857449+8518522(Top 72%)7111(Top 65%)7111(Top 406%)
30K18.64 mi3.11 mi19195+747477-287477-2818881(Top 74%)7514(Top 69%)7514(Top 429%)
20M20.00 mi1.36 mi19327-1327587-1107587-11020637(Top 81%)8561(Top 78%)8561(Top 488%)
21M21.00 mi1.00 mi19209+1187534+537534+5317947(Top 70%)7300(Top 67%)7300(Top 416%)
35K21.75 mi0.75 mi19112+977494+407494+4016974(Top 66%)6845(Top 63%)6845(Top 390%)
23M23.00 mi1.25 mi18972+1407443+517443+5117278(Top 68%)7053(Top 65%)7053(Top 402%)
24M24.00 mi1.00 mi18908+647432+117432+1118120(Top 71%)7529(Top 69%)7529(Top 429%)
40K24.85 mi0.85 mi18821+877403+297403+2916961(Top 66%)7015(Top 64%)7015(Top 400%)
25.2M25.20 mi0.35 mi18732+897375+287375+2813181(Top 52%)5201(Top 48%)5201(Top 297%)
Finish26.22 mi1.02 mi18693+397384-97384-917938(Top 70%)7476(Top 68%)7476(Top 426%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

19488

Females

7516

F45-49

7516

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

20057

Females

7861

F45-49

7861

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

19488

Females

7516

F45-49

7516

15K→20K

9.3 - 12.4 mi

Top 74%
×5story building
+106ft-86ft

Overall

18780

Females

7160

F45-49

7160

20K→Half

12.4 - 13.1 mi

Top 82%
×2story building
+19ft-37ft

Overall

20909

Females

8371

F45-49

8371

Half→25K

13.1 - 15.5 mi

Top 72%
×4story building
+66ft-88ft

Overall

18522

Females

7111

F45-49

7111

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

18881

Females

7514

F45-49

7514

30K→20M

18.6 - 20.0 mi

Top 81%
×5story building
+64ft-50ft

Overall

20637

Females

8561

F45-49

8561

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

17947

Females

7300

F45-49

7300

21M→35K

21.0 - 21.8 mi

Top 66%
×7story building
+17ft-86ft

Overall

16974

Females

6845

F45-49

6845

35K→23M

21.8 - 23.0 mi

Top 68%
×5story building
+23ft-63ft

Overall

17278

Females

7053

F45-49

7053

23M→24M

23.0 - 24.0 mi

Top 71%
×6story building
+12ft-82ft

Overall

18120

Females

7529

F45-49

7529

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

16961

Females

7015

F45-49

7015

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

13181

Females

5201

F45-49

5201

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2story building
+22ft-21ft

Overall

17938

Females

7476

F45-49

7476

Passing Analysis

Category:
Athletes Passed
2095
Passed By
1621
Net Change
+474
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19167
5K → 10K112523-411#19167#19578
10K → 15K244220+24#19578#19554
15K → 20K344126+218#19554#19336
20K → Half9111-102#19336#19438
Half → 25K271102+169#19438#19269
25K → 30K248174+74#19269#19195
30K → 20M67199-132#19195#19327
20M → 21M15234+118#19327#19209
21M → 35K11316+97#19209#19112
35K → 23M15919+140#19112#18972
23M → 24M10339+64#18972#18908
24M → 40K10417+87#18908#18821
40K → 25.2M890+89#18821#18732
25.2M → Finish8041+39#18732#18693
TOTALS20951621+474
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing