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BOSTON MARATHON 2023

Emily Nguyen

Bib: 23904•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:58
Rank: #24195
Start → 5K
31:58 | 10:17/mi
10K· 6.21 mi
1:05:18
Rank: #24729 (-534)
5K → 10K
33:20 | 10:44/mi
15K· 9.32 mi
1:38:35
Rank: #24773 (-44)
10K → 15K
33:17 | 10:43/mi
20K· 12.43 mi
2:12:42
Rank: #24720 (+53)
15K → 20K
34:07 | 10:59/mi
Half· 13.11 mi
2:20:09
Rank: #24733 (-13)
20K → Half
7:27 | 10:55/mi
25K· 15.53 mi
2:47:41
Rank: #24703 (+30)
Half → 25K
27:32 | 11:21/mi
30K· 18.64 mi
3:25:11
Rank: #24682 (+21)
25K → 30K
37:30 | 12:04/mi
20M
3:41:44
Rank: #24666 (+16)
30K → 20M
16:33 | 12:11/mi
21M
3:54:32
Rank: #24646 (+20)
20M → 21M
12:48 | 12:48/mi
35K· 21.75 mi
4:02:38
Rank: #24590 (+56)
21M → 35K
8:06 | 10:50/mi
23M
4:17:07
Rank: #24516 (+74)
35K → 23M
14:29 | 11:34/mi
24M
4:28:03
Rank: #24456 (+60)
23M → 24M
10:56 | 10:56/mi
40K· 24.85 mi
4:37:43
Rank: #24409 (+47)
24M → 40K
9:40 | 11:18/mi
25.2M
4:41:48
Rank: #24385 (+24)
40K → 25.2M
4:05 | 11:50/mi
Finish· 26.22 mi
4:52:34
Rank: #24350 (+35)
25.2M → Finish
10:46 | 10:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:20:09
Pace10:41 /mi
2nd Half
Distance13.11 mi
Time2:32:25
Pace11:38 /mi
📊Positive Split: 8.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:2431:5810:1731:58
10:17
-
10K
6.21 mi12:00:441:05:1810:3133:20
10:44
+0:27
15K
9.32 mi12:34:011:38:3510:3533:17
10:43
-0:01
20K
12.43 mi13:08:082:12:4210:4134:07
10:59
+0:16
Half
13.11 mi13:15:352:20:0910:417:27
10:55
-0:04
25K
15.53 mi13:43:072:47:4110:4827:32
11:21
+0:26
30K
18.64 mi14:20:373:25:1111:0037:30
12:04
+0:43
20M
20.00 mi14:37:103:41:4411:0516:33
12:11
+0:07
21M
21.00 mi14:49:583:54:3211:1012:48
12:48
+0:37
35K
21.75 mi14:58:044:02:3811:098:06
10:50
-1:58
23M
23.00 mi15:12:334:17:0711:1114:29
11:34
+0:44
24M
24.00 mi15:23:294:28:0311:1010:56
10:56
-0:38
40K
24.85 mi15:33:094:37:4311:109:40
11:18
+0:22
25.2M
25.20 mi15:37:144:41:4811:114:05
11:50
+0:32
Finish
26.22 mi15:48:004:52:3411:1010:46
10:34
-1:16

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

10:17 /mi

Average Pace

11:10 /mi

Slowest Pace

12:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

42:44

15% of race

Time at Steady Pace

2:16:53

47% of race

Time at Slower Pace

1:52:57

39% of race

Average Pace: 11:09 /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 mi11:27:2431:5810:1731:58
10:17
#24195
10K
6.21 mi12:00:441:05:1810:3133:20
10:44
#24729
15K
9.32 mi12:34:011:38:3510:3533:17
10:43
#24773
20K
12.43 mi13:08:082:12:4210:4134:07
10:59
#24720
Half
13.11 mi13:15:352:20:0910:417:27
10:55
#24733
25K
15.53 mi13:43:072:47:4110:4827:32
11:21
#24703
30K
18.64 mi14:20:373:25:1111:0037:30
12:04
#24682
20M
20.00 mi14:37:103:41:4411:0516:33
12:11
#24666
21M
21.00 mi14:49:583:54:3211:1012:48
12:48
#24646
35K
21.75 mi14:58:044:02:3811:098:06
10:50
#24590
23M
23.00 mi15:12:334:17:0711:1114:29
11:34
#24516
24M
24.00 mi15:23:294:28:0311:1010:56
10:56
#24456
40K
24.85 mi15:33:094:37:4311:109:40
11:18
#24409
25.2M
25.20 mi15:37:144:41:4811:114:05
11:50
#24385
Finish
26.22 mi15:48:004:52:3411:1010:46
10:34
#24350
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi241959986998624822(Top 93%)10367(Top 91%)10367(Top 1272%)
10K6.21 mi3.10 mi24729-53410283-29710283-29725058(Top 94%)10472(Top 92%)10472(Top 1285%)
15K9.32 mi3.11 mi24773-4410322-3910322-3924822(Top 93%)10367(Top 91%)10367(Top 1272%)
20K12.43 mi3.11 mi24720+5310304+1810304+1824613(Top 92%)10264(Top 90%)10264(Top 1259%)
Half13.11 mi0.68 mi24733-1310311-710311-724835(Top 93%)10401(Top 91%)10401(Top 1276%)
25K15.53 mi2.42 mi24703+3010302+910302+924486(Top 92%)10222(Top 89%)10222(Top 1254%)
30K18.64 mi3.11 mi24682+21103021030224582(Top 92%)10329(Top 90%)10329(Top 1267%)
20M20.00 mi1.36 mi24666+1610304-210304-224419(Top 92%)10294(Top 90%)10294(Top 1263%)
21M21.00 mi1.00 mi24646+2010298+610298+623835(Top 90%)10001(Top 88%)10001(Top 1227%)
35K21.75 mi0.75 mi24590+5610274+2410274+2422994(Top 86%)9592(Top 84%)9592(Top 1177%)
23M23.00 mi1.25 mi24516+7410239+3510239+3523377(Top 88%)9793(Top 86%)9793(Top 1202%)
24M24.00 mi1.00 mi24456+6010221+1810221+1822938(Top 86%)9606(Top 84%)9606(Top 1179%)
40K24.85 mi0.85 mi24409+4710201+2010201+2022918(Top 86%)9622(Top 84%)9622(Top 1181%)
25.2M25.20 mi0.35 mi24385+2410191+1010191+1022251(Top 84%)9271(Top 81%)9271(Top 1138%)
Finish26.22 mi1.02 mi24350+3510178+1310178+1323153(Top 87%)9723(Top 85%)9723(Top 1193%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
×21stories
+97ft-345ft

Overall

24822

Females

10367

F55-59

10367

5K→10K

3.1 - 6.2 mi

Top 94%
×5stories
+79ft-138ft

Overall

25058

Females

10472

F55-59

10472

10K→15K

6.2 - 9.3 mi

Top 93%
×3stories
+67ft-78ft

Overall

24822

Females

10367

F55-59

10367

15K→20K

9.3 - 12.4 mi

Top 92%
×5stories
+106ft-86ft

Overall

24613

Females

10264

F55-59

10264

20K→Half

12.4 - 13.1 mi

Top 93%
×2stories
+19ft-37ft

Overall

24835

Females

10401

F55-59

10401

Half→25K

13.1 - 15.5 mi

Top 92%
×4stories
+66ft-88ft

Overall

24486

Females

10222

F55-59

10222

25K→30K

15.5 - 18.6 mi

Top 92%
×9stories
+181ft-148ft

Overall

24582

Females

10329

F55-59

10329

30K→20M

18.6 - 20.0 mi

Top 92%
×5stories
+64ft-50ft

Overall

24419

Females

10294

F55-59

10294

20M→21M

20.0 - 21.0 mi

Top 90%
×8stories
+106ft-24ft

Overall

23835

Females

10001

F55-59

10001

21M→35K

21.0 - 21.8 mi

Top 86%
×7stories
+17ft-86ft

Overall

22994

Females

9592

F55-59

9592

35K→23M

21.8 - 23.0 mi

Top 88%
×5stories
+23ft-63ft

Overall

23377

Females

9793

F55-59

9793

23M→24M

23.0 - 24.0 mi

Top 86%
×6stories
+12ft-82ft

Overall

22938

Females

9606

F55-59

9606

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

22918

Females

9622

F55-59

9622

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

22251

Females

9271

F55-59

9271

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2stories
+22ft-21ft

Overall

23153

Females

9723

F55-59

9723

Passing Analysis

Category:
Athletes Passed
906
Passed By
1061
Net Change
-155
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24195
5K → 10K42576-534#24195#24729
10K → 15K91135-44#24729#24773
15K → 20K13279+53#24773#24720
20K → Half1629-13#24720#24733
Half → 25K8959+30#24733#24703
25K → 30K10483+21#24703#24682
30K → 20M5640+16#24682#24666
20M → 21M3717+20#24666#24646
21M → 35K604+56#24646#24590
35K → 23M8410+74#24590#24516
23M → 24M677+60#24516#24456
24M → 40K547+47#24456#24409
40K → 25.2M262+24#24409#24385
25.2M → Finish4813+35#24385#24350
TOTALS9061061-155
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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