Boston Marathon logo
BOSTON MARATHON 2023

Adam Shilling

DE

Bib: 12350 M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 34%
Gender (Male)
#0 / 15176
Top 49%
Masters (Masters Men)
#0 / 9891
Top 37%
Division (M45-49)
#0 / 2252
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:35/mi
23:34
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:28/mi
46:47
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:31/mi
1:10:08
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:37/mi
1:33:49
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:33/mi
1:38:58
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:35/mi
1:57:22
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:44/mi
2:21:25
↑ 181↓ 1480.2%
138 ft elev
20M
7:47/mi
2:32:00
↑ 64↓ 500.2%
148 ft elev
21M
8:02/mi
2:40:02
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:34/mi
2:45:42
↑ 17↓ 861.7%
156 ft elev
23M
7:46/mi
2:55:25
↑ 23↓ 630.6%
116 ft elev
24M
7:35/mi
3:03:00
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:41/mi
3:09:34
↓ 200.3%
20 ft elev
25.2M
8:10/mi
3:12:23
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:14/mi
3:19:45
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Is this your race?

Claim it for a free AI report on this race

A one-of-a-kind AI Race Performance Report that reads your race like a coach. A plain-English story of how you raced, where you surged and faded, and what it all means. Emailed to you, free.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:58
Pace7:33 /mi
2nd Half
Distance13.11 mi
Time1:40:47
Pace7:41 /mi
📊Positive Split: 1.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:0123:347:3523:34
7:35
-
10K
6.21 mi11:15:1446:477:3223:13
7:28
-0:07
15K
9.32 mi11:38:351:10:087:3123:21
7:31
+0:03
20K
12.43 mi12:02:161:33:497:3323:41
7:37
+0:06
Half
13.11 mi12:07:251:38:587:335:09
7:33
-0:04
25K
15.53 mi12:25:491:57:227:3318:24
7:35
+0:02
30K
18.64 mi12:49:522:21:257:3524:03
7:44
+0:09
20M
20.00 mi13:00:272:32:007:3610:35
7:47
+0:03
21M
21.00 mi13:08:292:40:027:378:02
8:02
+0:15
35K
21.75 mi13:14:092:45:427:375:40
7:34
-0:28
23M
23.00 mi13:23:522:55:257:389:43
7:46
+0:12
24M
24.00 mi13:31:273:03:007:387:35
7:35
-0:11
40K
24.85 mi13:38:013:09:347:386:34
7:41
+0:06
25.2M
25.20 mi13:40:503:12:237:382:49
8:10
+0:29
Finish
26.22 mi13:48:123:19:457:377:22
7:14
-0:56

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

7:14 /mi

Average Pace

7:37 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:08:54

95% of race

Time at Steady Pace

10:51

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:37 /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 mi10:52:0123:347:3523:34
7:35
#10382
10K
6.21 mi11:15:1446:477:3223:13
7:28
#10292
15K
9.32 mi11:38:351:10:087:3123:21
7:31
#10270
20K
12.43 mi12:02:161:33:497:3323:41
7:37
#10265
Half
13.11 mi12:07:251:38:587:335:09
7:33
#10281
25K
15.53 mi12:25:491:57:227:3318:24
7:35
#10088
30K
18.64 mi12:49:522:21:257:3524:03
7:44
#9865
20M
20.00 mi13:00:272:32:007:3610:35
7:47
#9735
21M
21.00 mi13:08:292:40:027:378:02
8:02
#9592
35K
21.75 mi13:14:092:45:427:375:40
7:34
#9556
23M
23.00 mi13:23:522:55:257:389:43
7:46
#9423
24M
24.00 mi13:31:273:03:007:387:35
7:35
#9338
40K
24.85 mi13:38:013:09:347:386:34
7:41
#9260
25.2M
25.20 mi13:40:503:12:237:382:49
8:10
#9221
Finish
26.22 mi13:48:123:19:457:377:22
7:14
#9119
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi103828341834110288(Top 39%)8294(Top 55%)8294(Top 368%)
10K6.21 mi3.10 mi10292+908308+338308+3310225(Top 38%)8287(Top 55%)8287(Top 368%)
15K9.32 mi3.11 mi10270+228312-48312-410288(Top 39%)8294(Top 55%)8294(Top 368%)
20K12.43 mi3.11 mi10265+58293+198293+1910244(Top 38%)8205(Top 54%)8205(Top 364%)
Half13.11 mi0.68 mi10281-168303-108303-1010525(Top 40%)8347(Top 55%)8347(Top 371%)
25K15.53 mi2.42 mi10088+1938176+1278176+1279447(Top 35%)7679(Top 51%)7679(Top 341%)
30K18.64 mi3.11 mi9865+2238019+1578019+1578933(Top 34%)7243(Top 48%)7243(Top 322%)
20M20.00 mi1.36 mi9735+1307920+997920+998751(Top 33%)7049(Top 46%)7049(Top 313%)
21M21.00 mi1.00 mi9592+1437816+1047816+1047550(Top 28%)6218(Top 41%)6218(Top 276%)
35K21.75 mi0.75 mi9556+367777+397777+399063(Top 34%)7106(Top 47%)7106(Top 316%)
23M23.00 mi1.25 mi9423+1337675+1027675+1028137(Top 31%)6485(Top 43%)6485(Top 288%)
24M24.00 mi1.00 mi9338+857597+787597+788275(Top 31%)6480(Top 43%)6480(Top 288%)
40K24.85 mi0.85 mi9260+787521+767521+767831(Top 29%)6145(Top 40%)6145(Top 273%)
25.2M25.20 mi0.35 mi9221+397486+357486+357485(Top 28%)5885(Top 39%)5885(Top 261%)
Finish26.22 mi1.02 mi9119+1027410+767410+766622(Top 25%)5333(Top 35%)5333(Top 237%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21story building
+97ft-345ft

Overall

10288

Males

8294

M45-49

8294

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10225

Males

8287

M45-49

8287

10K→15K

6.2 - 9.3 mi

Top 39%
×3story building
+67ft-78ft

Overall

10288

Males

8294

M45-49

8294

15K→20K

9.3 - 12.4 mi

Top 38%
×5story building
+106ft-86ft

Overall

10244

Males

8205

M45-49

8205

20K→Half

12.4 - 13.1 mi

Top 40%
×2story building
+19ft-37ft

Overall

10525

Males

8347

M45-49

8347

Half→25K

13.1 - 15.5 mi

Top 35%
×4story building
+66ft-88ft

Overall

9447

Males

7679

M45-49

7679

25K→30K

15.5 - 18.6 mi

Top 34%
×9story building
+181ft-148ft

Overall

8933

Males

7243

M45-49

7243

30K→20M

18.6 - 20.0 mi

Top 33%
×5story building
+64ft-50ft

Overall

8751

Males

7049

M45-49

7049

20M→21M

20.0 - 21.0 mi

Top 28%
×8story building
+106ft-24ft

Overall

7550

Males

6218

M45-49

6218

21M→35K

21.0 - 21.8 mi

Top 34%
×7story building
+17ft-86ft

Overall

9063

Males

7106

M45-49

7106

35K→23M

21.8 - 23.0 mi

Top 31%
×5story building
+23ft-63ft

Overall

8137

Males

6485

M45-49

6485

23M→24M

23.0 - 24.0 mi

Top 31%
×6story building
+12ft-82ft

Overall

8275

Males

6480

M45-49

6480

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

7831

Males

6145

M45-49

6145

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7485

Males

5885

M45-49

5885

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2story building
+22ft-21ft

Overall

6622

Males

5333

M45-49

5333

Passing Analysis

Category:
Athletes Passed
2149*
Passed By
886
Net Change
+1263
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10382
5K → 10K348*258+90#10382#10292
10K → 15K188166+22#10292#10270
15K → 20K158*153+5#10270#10265
20K → Half2238-16#10265#10281
Half → 25K23340+193#10281#10088
25K → 30K285*62+223#10088#9865
30K → 20M15626+130#9865#9735
20M → 21M15815+143#9735#9592
21M → 35K6428+36#9592#9556
35K → 23M15320+133#9556#9423
23M → 24M10621+85#9423#9338
24M → 40K11335+78#9338#9260
40K → 25.2M5213+39#9260#9221
25.2M → Finish11311+102#9221#9119
TOTALS2149*886+1263

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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