Boston Marathon logo
BOSTON MARATHON 2023

Gustavo Testi

Bib: 4362•M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 10%
Gender (Male)
#0 / 15176
Top 17%
Division (M18-39)
#0 / 5285
Top 37%
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
6:37/mi
20:32
↑ 97↓ 3451.5%
10K· 6.21 mi
6:25/mi
40:29
↑ 79↓ 1380.4%
15K· 9.32 mi
6:30/mi
1:00:42
↑ 67↓ 78
20K· 12.43 mi
6:39/mi
1:21:22
↑ 106↓ 860.1%
Half· 13.11 mi
6:31/mi
1:25:49
↑ 19↓ 370.5%
25K· 15.53 mi
6:39/mi
1:41:56
↑ 66↓ 880.2%
30K· 18.64 mi
6:51/mi
2:03:14
↑ 181↓ 1480.2%
20M
6:54/mi
2:12:36
↑ 64↓ 500.2%
21M
7:14/mi
2:19:50
↑ 106↓ 241.6%
35K· 21.75 mi
6:42/mi
2:24:51
↑ 17↓ 861.7%
23M
6:52/mi
2:33:27
↑ 23↓ 630.6%
24M
6:39/mi
2:40:06
↓ 821.3%
40K· 24.85 mi
6:46/mi
2:45:53
↓ 200.3%
25.2M
7:27/mi
2:48:27
↑ 13↓ 160.2%
Finish· 26.22 mi
6:36/mi
2:55:11
↑ 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
Time1:25:49
Pace6:33 /mi
2nd Half
Distance13.11 mi
Time1:29:22
Pace6:49 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:2020:326:3720:32
6:37
-
10K
6.21 mi10:42:1740:296:3119:57
6:25
-0:12
15K
9.32 mi11:02:301:00:426:3120:13
6:30
+0:05
20K
12.43 mi11:23:101:21:226:3320:40
6:39
+0:09
Half
13.11 mi11:27:371:25:496:334:27
6:31
-0:08
25K
15.53 mi11:43:441:41:566:3416:07
6:39
+0:08
30K
18.64 mi12:05:022:03:146:3721:18
6:51
+0:12
20M
20.00 mi12:14:242:12:366:389:22
6:54
+0:03
21M
21.00 mi12:21:382:19:506:407:14
7:14
+0:20
35K
21.75 mi12:26:392:24:516:405:01
6:42
-0:32
23M
23.00 mi12:35:152:33:276:408:36
6:52
+0:10
24M
24.00 mi12:41:542:40:066:406:39
6:39
-0:13
40K
24.85 mi12:47:412:45:536:405:47
6:46
+0:07
25.2M
25.20 mi12:50:152:48:276:412:34
7:27
+0:41
Finish
26.22 mi12:56:592:55:116:416:44
6:36
-0:51

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

6:25 /mi

Average Pace

6:41 /mi

Slowest Pace

7:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:45:23

94% of race

Time at Steady Pace

9:48

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:41 /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 mi10:22:2020:326:3720:32
6:37
#2920
10K
6.21 mi10:42:1740:296:3119:57
6:25
#2611
15K
9.32 mi11:02:301:00:426:3120:13
6:30
#2601
20K
12.43 mi11:23:101:21:226:3320:40
6:39
#2714
Half
13.11 mi11:27:371:25:496:334:27
6:31
#2718
25K
15.53 mi11:43:441:41:566:3416:07
6:39
#2752
30K
18.64 mi12:05:022:03:146:3721:18
6:51
#2805
20M
20.00 mi12:14:242:12:366:389:22
6:54
#2813
21M
21.00 mi12:21:382:19:506:407:14
7:14
#2807
35K
21.75 mi12:26:392:24:516:405:01
6:42
#2821
23M
23.00 mi12:35:152:33:276:408:36
6:52
#2799
24M
24.00 mi12:41:542:40:066:406:39
6:39
#2777
40K
24.85 mi12:47:412:45:536:405:47
6:46
#2742
25.2M
25.20 mi12:50:152:48:276:412:34
7:27
#2746
Finish
26.22 mi12:56:592:55:116:416:44
6:36
#2738
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2920277427742676(Top 10%)2557(Top 17%)2557(Top 48%)
10K6.21 mi3.10 mi2611+3092491+2832491+2832346(Top 9%)2247(Top 15%)2247(Top 43%)
15K9.32 mi3.11 mi2601+102484+72484+72676(Top 10%)2557(Top 17%)2557(Top 48%)
20K12.43 mi3.11 mi2714-1132593-1092593-1093188(Top 12%)3029(Top 20%)3029(Top 57%)
Half13.11 mi0.68 mi2718-42598-52598-52912(Top 11%)2787(Top 18%)2787(Top 53%)
25K15.53 mi2.42 mi2752-342629-312629-312977(Top 11%)2837(Top 19%)2837(Top 54%)
30K18.64 mi3.11 mi2805-532683-542683-543332(Top 13%)3136(Top 21%)3136(Top 59%)
20M20.00 mi1.36 mi2813-82689-62689-63344(Top 13%)3127(Top 21%)3127(Top 59%)
21M21.00 mi1.00 mi2807+62682+72682+73265(Top 12%)3045(Top 20%)3045(Top 58%)
35K21.75 mi0.75 mi2821-142696-142696-143551(Top 13%)3285(Top 22%)3285(Top 62%)
23M23.00 mi1.25 mi2799+222670+262670+263035(Top 11%)2830(Top 19%)2830(Top 54%)
24M24.00 mi1.00 mi2777+222644+262644+262820(Top 11%)2621(Top 17%)2621(Top 50%)
40K24.85 mi0.85 mi2742+352608+362608+362637(Top 10%)2436(Top 16%)2436(Top 46%)
25.2M25.20 mi0.35 mi2746-42610-22610-23562(Top 13%)3190(Top 21%)3190(Top 60%)
Finish26.22 mi1.02 mi2738+82605+52605+53006(Top 11%)2715(Top 18%)2715(Top 51%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21story building
+97ft-345ft

Overall

2676

Males

2557

M18-39

2557

5K→10K

3.1 - 6.2 mi

Top 9%
×5story building
+79ft-138ft

Overall

2346

Males

2247

M18-39

2247

10K→15K

6.2 - 9.3 mi

Top 10%
×3story building
+67ft-78ft

Overall

2676

Males

2557

M18-39

2557

15K→20K

9.3 - 12.4 mi

Top 12%
×5story building
+106ft-86ft

Overall

3188

Males

3029

M18-39

3029

20K→Half

12.4 - 13.1 mi

Top 11%
×2story building
+19ft-37ft

Overall

2912

Males

2787

M18-39

2787

Half→25K

13.1 - 15.5 mi

Top 11%
×4story building
+66ft-88ft

Overall

2977

Males

2837

M18-39

2837

25K→30K

15.5 - 18.6 mi

Top 13%
×9story building
+181ft-148ft

Overall

3332

Males

3136

M18-39

3136

30K→20M

18.6 - 20.0 mi

Top 13%
×5story building
+64ft-50ft

Overall

3344

Males

3127

M18-39

3127

20M→21M

20.0 - 21.0 mi

Top 12%
×8story building
+106ft-24ft

Overall

3265

Males

3045

M18-39

3045

21M→35K

21.0 - 21.8 mi

Top 13%
×7story building
+17ft-86ft

Overall

3551

Males

3285

M18-39

3285

35K→23M

21.8 - 23.0 mi

Top 11%
×5story building
+23ft-63ft

Overall

3035

Males

2830

M18-39

2830

23M→24M

23.0 - 24.0 mi

Top 11%
×6story building
+12ft-82ft

Overall

2820

Males

2621

M18-39

2621

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2637

Males

2436

M18-39

2436

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3562

Males

3190

M18-39

3190

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2story building
+22ft-21ft

Overall

3006

Males

2715

M18-39

2715

Passing Analysis

Category:
Athletes Passed
930
Passed By
748
Net Change
+182
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2920
5K → 10K35849+309#2920#2611
10K → 15K8575+10#2611#2601
15K → 20K38151-113#2601#2714
20K → Half2024-4#2714#2718
Half → 25K4074-34#2718#2752
25K → 30K57110-53#2752#2805
30K → 20M3745-8#2805#2813
20M → 21M4539+6#2813#2807
21M → 35K2539-14#2807#2821
35K → 23M6240+22#2821#2799
23M → 24M5331+22#2799#2777
24M → 40K5722+35#2777#2742
40K → 25.2M1115-4#2742#2746
25.2M → Finish4234+8#2746#2738
TOTALS930748+182
📊

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