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BOSTON MARATHON 2023

Jonathan Nguyen

Bib: 2741•M

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 50%
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
7:08/mi
22:09
↑ 97↓ 3451.5%
10K· 6.21 mi
7:16/mi
44:44
↑ 79↓ 1380.4%
15K· 9.32 mi
7:22/mi
1:07:37
↑ 67↓ 78
20K· 12.43 mi
7:42/mi
1:31:31
↑ 106↓ 860.1%
Half· 13.11 mi
7:49/mi
1:36:51
↑ 19↓ 370.5%
25K· 15.53 mi
8:06/mi
1:56:29
↑ 66↓ 880.2%
30K· 18.64 mi
9:06/mi
2:24:44
↑ 181↓ 1480.2%
20M
9:21/mi
2:37:27
↑ 64↓ 500.2%
21M
9:56/mi
2:47:23
↑ 106↓ 241.6%
35K· 21.75 mi
8:41/mi
2:53:53
↑ 17↓ 861.7%
23M
8:58/mi
3:05:06
↑ 23↓ 630.6%
24M
8:59/mi
3:14:05
↓ 821.3%
40K· 24.85 mi
9:11/mi
3:21:56
↓ 200.3%
25.2M
9:40/mi
3:25:16
↑ 13↓ 160.2%
Finish· 26.22 mi
8:22/mi
3:33:48
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:51
Pace7:23 /mi
2nd Half
Distance13.11 mi
Time1:56:57
Pace8:55 /mi
📊Positive Split: 20.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:1322:097:0822:09
7:08
-
10K
6.21 mi10:45:4844:447:1222:35
7:16
+0:08
15K
9.32 mi11:08:411:07:377:1522:53
7:22
+0:06
20K
12.43 mi11:32:351:31:317:2223:54
7:42
+0:20
Half
13.11 mi11:37:551:36:517:235:20
7:49
+0:07
25K
15.53 mi11:57:331:56:297:3019:38
8:06
+0:17
30K
18.64 mi12:25:482:24:447:4628:15
9:06
+1:00
20M
20.00 mi12:38:312:37:277:5212:43
9:21
+0:15
21M
21.00 mi12:48:272:47:237:589:56
9:56
+0:35
35K
21.75 mi12:54:572:53:538:006:30
8:41
-1:15
23M
23.00 mi13:06:103:05:068:0311:13
8:58
+0:17
24M
24.00 mi13:15:093:14:058:058:59
8:59
+0:01
40K
24.85 mi13:23:003:21:568:077:51
9:11
+0:12
25.2M
25.20 mi13:26:203:25:168:093:20
9:40
+0:29
Finish
26.22 mi13:34:523:33:488:108:32
8:22
-1:18

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

7:08 /mi

Average Pace

8:10 /mi

Slowest Pace

9:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:29

54% of race

Time at Steady Pace

1:03:29

30% of race

Time at Slower Pace

33:50

16% of race

Average Pace: 8:09 /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 mi10:23:1322:097:0822:09
7:08
#7071
10K
6.21 mi10:45:4844:447:1222:35
7:16
#7759
15K
9.32 mi11:08:411:07:377:1522:53
7:22
#8135
20K
12.43 mi11:32:351:31:317:2223:54
7:42
#8732
Half
13.11 mi11:37:551:36:517:235:20
7:49
#8911
25K
15.53 mi11:57:331:56:297:3019:38
8:06
#9634
30K
18.64 mi12:25:482:24:447:4628:15
9:06
#11284
20M
20.00 mi12:38:312:37:277:5212:43
9:21
#11987
21M
21.00 mi12:48:272:47:237:589:56
9:56
#12412
35K
21.75 mi12:54:572:53:538:006:30
8:41
#12590
23M
23.00 mi13:06:103:05:068:0311:13
8:58
#12824
24M
24.00 mi13:15:093:14:058:058:59
8:59
#13032
40K
24.85 mi13:23:003:21:568:077:51
9:11
#13196
25.2M
25.20 mi13:26:203:25:168:093:20
9:40
#13220
Finish
26.22 mi13:34:523:33:488:108:32
8:22
#13277
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi7071632563259063(Top 34%)7579(Top 50%)7579(Top 143%)
10K6.21 mi3.10 mi7759-6886817-4926817-4928634(Top 32%)7353(Top 48%)7353(Top 139%)
15K9.32 mi3.11 mi8135-3767041-2247041-2249063(Top 34%)7579(Top 50%)7579(Top 143%)
20K12.43 mi3.11 mi8732-5977395-3547395-35410854(Top 41%)8505(Top 56%)8505(Top 161%)
Half13.11 mi0.68 mi8911-1797493-987493-9812829(Top 48%)9422(Top 62%)9422(Top 178%)
25K15.53 mi2.42 mi9634-7237920-4277920-42713481(Top 51%)9550(Top 63%)9550(Top 181%)
30K18.64 mi3.11 mi11284-16508689-7698689-76917642(Top 66%)11182(Top 74%)11182(Top 212%)
20M20.00 mi1.36 mi11987-7038983-2948983-29418249(Top 69%)11345(Top 75%)11345(Top 215%)
21M21.00 mi1.00 mi12412-4259157-1749157-17417758(Top 67%)11117(Top 73%)11117(Top 210%)
35K21.75 mi0.75 mi12590-1789211-549211-5416317(Top 61%)10403(Top 69%)10403(Top 197%)
23M23.00 mi1.25 mi12824-2349286-759286-7515816(Top 59%)10148(Top 67%)10148(Top 192%)
24M24.00 mi1.00 mi13032-2089345-599345-5917122(Top 64%)10668(Top 70%)10668(Top 202%)
40K24.85 mi0.85 mi13196-1649401-569401-5616986(Top 64%)10569(Top 70%)10569(Top 200%)
25.2M25.20 mi0.35 mi13220-249392+99392+915897(Top 60%)10061(Top 66%)10061(Top 190%)
Finish26.22 mi1.02 mi13277-579393-19393-114535(Top 55%)9504(Top 63%)9504(Top 180%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21story building
+97ft-345ft

Overall

9063

Males

7579

M18-39

7579

5K→10K

3.1 - 6.2 mi

Top 32%
×5story building
+79ft-138ft

Overall

8634

Males

7353

M18-39

7353

10K→15K

6.2 - 9.3 mi

Top 34%
×3story building
+67ft-78ft

Overall

9063

Males

7579

M18-39

7579

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

10854

Males

8505

M18-39

8505

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

12829

Males

9422

M18-39

9422

Half→25K

13.1 - 15.5 mi

Top 51%
×4story building
+66ft-88ft

Overall

13481

Males

9550

M18-39

9550

25K→30K

15.5 - 18.6 mi

Top 66%
×9story building
+181ft-148ft

Overall

17642

Males

11182

M18-39

11182

30K→20M

18.6 - 20.0 mi

Top 69%
×5story building
+64ft-50ft

Overall

18249

Males

11345

M18-39

11345

20M→21M

20.0 - 21.0 mi

Top 67%
×8story building
+106ft-24ft

Overall

17758

Males

11117

M18-39

11117

21M→35K

21.0 - 21.8 mi

Top 61%
×7story building
+17ft-86ft

Overall

16317

Males

10403

M18-39

10403

35K→23M

21.8 - 23.0 mi

Top 59%
×5story building
+23ft-63ft

Overall

15816

Males

10148

M18-39

10148

23M→24M

23.0 - 24.0 mi

Top 64%
×6story building
+12ft-82ft

Overall

17122

Males

10668

M18-39

10668

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

16986

Males

10569

M18-39

10569

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

15897

Males

10061

M18-39

10061

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2story building
+22ft-21ft

Overall

14535

Males

9504

M18-39

9504

Passing Analysis

Category:
Athletes Passed
332
Passed By
6537
Net Change
-6206
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7071
5K → 10K39727-688#7071#7759
10K → 15K41417-376#7759#8135
15K → 20K27624-597#8135#8732
20K → Half1180-179#8732#8911
Half → 25K18741-723#8911#9634
25K → 30K81657-1650#9634#11284
30K → 20M10713-703#11284#11987
20M → 21M19444-425#11987#12412
21M → 35K15193-178#12412#12590
35K → 23M35269-234#12590#12824
23M → 24M24232-208#12824#13032
24M → 40K27191-164#13032#13196
40K → 25.2M3155-24#13196#13220
25.2M → Finish3794-57#13220#13277
TOTALS3326537-6206
📊

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