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SF MARATHON 2026

David Mackay

Bib: 1712•M•Age: 54

Concord, CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 7166
Top 4%
Gender (Male)
#0 / 5052
Top 6%
Masters (Masters Men)
#0 / 1321
Top 3%
Division (M50-54)
#0 / 245
Top 2%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
2M
14:54
Rank: #405
Start → 2M
14:54 | 7:27/mi
4M
29:57
Rank: #396 (+9)
2M → 4M
15:03 | 7:32/mi
6M
45:11
Rank: #403 (-7)
4M → 6M
15:14 | 7:37/mi
8M
1:00:11
Rank: #399 (+4)
6M → 8M
15:00 | 7:30/mi
9.6M
1:12:30
Rank: #381 (+18)
8M → 9.6M
12:19 | 7:42/mi
10M
1:14:36
Rank: #382 (-1)
9.6M → 10M
2:06 | 5:15/mi
10.5M
1:19:29
Rank: #374 (+8)
10M → 10.5M
4:53 | 9:46/mi
12M
1:30:08
Rank: #376 (-2)
10.5M → 12M
10:39 | 7:06/mi
14M
1:46:13
Rank: #376
12M → 14M
16:05 | 8:02/mi
16M
1:58:09
Rank: #337 (+39)
14M → 16M
11:56 | 5:58/mi
18M
2:15:34
Rank: #356 (-19)
16M → 18M
17:25 | 8:43/mi
20M
2:31:05
Rank: #346 (+10)
18M → 20M
15:31 | 7:45/mi
22M
2:44:42
Rank: #308 (+38)
20M → 22M
13:37 | 6:48/mi
24M
3:01:21
Rank: #314 (-6)
22M → 24M
16:39 | 8:20/mi
Finish· 26.22 mi
3:19:29
Rank: #309 (+5)
24M → Finish
18:08 | 8:10/mi

The Course

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Half Splits

1st Half· via 14M
Distance14.00 mi
Time1:46:13
Pace7:35 /mi
2nd Half✓ Faster
Distance12.22 mi
Time1:33:16
Pace7:38 /mi
📊Negative Split: 12.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi05:30:4714:547:2714:54
7:27
-
4M
4.00 mi05:45:5029:577:2915:03
7:32
+0:05
6M
6.00 mi06:01:0445:117:3215:14
7:37
+0:05
8M
8.00 mi06:16:041:00:117:3115:00
7:30
-0:07
9.6M
9.60 mi06:28:231:12:307:3312:19
7:42
+0:12
10M
10.00 mi06:30:291:14:367:282:06
5:15
-2:27
10.5M
10.50 mi06:35:221:19:297:344:53
9:46
+4:31
12M
12.00 mi06:46:011:30:087:3110:39
7:06
-2:40
14M
14.00 mi07:02:061:46:137:3516:05
8:02
+0:56
16M
16.00 mi07:14:021:58:097:2311:56
5:58
-2:04
18M
18.00 mi07:31:272:15:347:3217:25
8:43
+2:45
20M
20.00 mi07:46:582:31:057:3315:31
7:45
-0:58
22M
22.00 mi08:00:352:44:427:2913:37
6:48
-0:57
24M
24.00 mi08:17:143:01:217:3316:39
8:20
+1:32
Finish
26.22 mi08:35:223:19:297:3718:08
8:10
-0:10

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

5:15 /mi

Average Pace

7:37 /mi

Slowest Pace

9:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

27:39

14% of race

Time at Steady Pace

1:54:45

58% of race

Time at Slower Pace

57:05

29% of race

Average Pace: 7:36 /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
2M
2.00 mi05:30:4714:547:2714:54
7:27
#405
4M
4.00 mi05:45:5029:577:2915:03
7:32
#396
6M
6.00 mi06:01:0445:117:3215:14
7:37
#403
8M
8.00 mi06:16:041:00:117:3115:00
7:30
#399
9.6M
9.60 mi06:28:231:12:307:3312:19
7:42
#381
10M
10.00 mi06:30:291:14:367:282:06
5:15
#382
10.5M
10.50 mi06:35:221:19:297:344:53
9:46
#374
12M
12.00 mi06:46:011:30:087:3110:39
7:06
#376
14M
14.00 mi07:02:061:46:137:3516:05
8:02
#376
16M
16.00 mi07:14:021:58:097:2311:56
5:58
#337
18M
18.00 mi07:31:272:15:347:3217:25
8:43
#356
20M
20.00 mi07:46:582:31:057:3315:31
7:45
#346
22M
22.00 mi08:00:352:44:427:2913:37
6:48
#308
24M
24.00 mi08:17:143:01:217:3316:39
8:20
#314
Finish
26.22 mi08:35:223:19:297:3718:08
8:10
#309
Faster pace
Steady pace
Slower pace
Garmin Challenge
Featured Segment

Garmin Challenge

The climb, presented by Garmin

Top 5%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

6:59

Segment Time

7:46/mi

Pace

0.90 mi

Distance

Overall

367

Men

338

Division

10

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
2M2.00 mi2.00 mi4053759389(Top 5%)360(Top 7%)6(Top 2%)
4M4.00 mi2.00 mi396+9369+68+1390(Top 5%)363(Top 7%)8(Top 3%)
6M6.00 mi2.00 mi403-7372-39-1438(Top 6%)402(Top 8%)9(Top 4%)
8M8.00 mi2.00 mi399+4369+39422(Top 6%)389(Top 8%)9(Top 4%)
9.6M9.60 mi1.60 mi381+18355+149345(Top 5%)323(Top 6%)7(Top 3%)
10M10.00 mi0.40 mi382-1356-19427(Top 6%)394(Top 8%)10(Top 4%)
10.5M10.50 mi0.50 mi374+8348+89377(Top 5%)343(Top 7%)9(Top 4%)
12M12.00 mi1.50 mi376-2349-18+1389(Top 5%)360(Top 7%)6(Top 2%)
14M14.00 mi2.00 mi3763498395(Top 6%)363(Top 7%)7(Top 3%)
16M16.00 mi2.00 mi337+39316+337+1208(Top 3%)195(Top 4%)3(Top 1%)
18M18.00 mi2.00 mi356-19332-167951(Top 13%)819(Top 16%)26(Top 11%)
20M20.00 mi2.00 mi346+10322+107359(Top 5%)322(Top 6%)6(Top 2%)
22M22.00 mi2.00 mi308+38286+365+2167(Top 2%)153(Top 3%)2(Top 0.8%)
24M24.00 mi2.00 mi314-6289-36-1394(Top 5%)357(Top 7%)6(Top 2%)
Finish26.22 mi2.22 mi309+5286+36450(Top 6%)390(Top 8%)9(Top 4%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 5%
×1human
+6ft-11ft

Overall

389

Males

360

M50-54

6

2M→4M

2.0 - 4.0 mi

Top 5%
×4stories
+75ft-70ft

Overall

390

Males

363

M50-54

9

4M→6M

4.0 - 6.0 mi

Top 6%
×5stories
+71ft-18ft

Overall

438

Males

402

M50-54

10

6M→8M

6.0 - 8.0 mi

Top 6%
×9stories
+106ft-21ft

Overall

422

Males

389

M50-54

10

8M→9.6M

8.0 - 9.6 mi

Top 5%
×13stories
+117ft-177ft

Overall

345

Males

323

M50-54

8

9.6M→10M

9.6 - 10.0 mi

Top 6%
×1story
+17ft-12ft

Overall

427

Males

394

M50-54

11

10M→10.5M

10.0 - 10.5 mi

Top 5%
×9stories
+0ft-102ft

Overall

377

Males

343

M50-54

10

10.5M→12M

10.5 - 12.0 mi

Top 5%
×18stories
+304ft-125ft

Overall

389

Males

360

M50-54

6

12M→14M

12.0 - 14.0 mi

Top 6%
×9stories
+99ft-125ft

Overall

395

Males

363

M50-54

7

14M→16M

14.0 - 16.0 mi

Top 3%
×9stories
+124ft-78ft

Overall

208

Males

195

M50-54

3

16M→18M

16.0 - 18.0 mi

Top 13%
×8stories
+106ft-45ft

Overall

951

Males

819

M50-54

26

18M→20M

18.0 - 20.0 mi

Top 5%
×3stories
+52ft-26ft

Overall

359

Males

322

M50-54

6

20M→22M

20.0 - 22.0 mi

Top 2%
×21stories
+17ft-266ft

Overall

167

Males

153

M50-54

2

22M→24M

22.0 - 24.0 mi

Top 5%
×3stories
+70ft-85ft

Overall

394

Males

357

M50-54

6

24M→Finish

24.0 - 26.2 mi

Top 6%
~flat
+2ft-2ft

Overall

450

Males

390

M50-54

9

Passing Analysis

Category:
Athletes Passed
215*
Passed By
119
Net Change
+96
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#405
2M → 4M2415+9#405#396
4M → 6M1421-7#396#403
6M → 8M11*7+4#403#399
8M → 9.6M202+18#399#381
9.6M → 10M01-1#381#382
10M → 10.5M91+8#382#374
10.5M → 12M79-2#374#376
12M → 14M5*50#376#376
14M → 16M390+39#376#337
16M → 18M1029-19#337#356
18M → 20M188+10#356#346
20M → 22M391+38#346#308
22M → 24M814-6#308#314
24M → Finish116+5#314#309
TOTALS215*119+96

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

📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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