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SF MARATHON 2026

Alex Koo

Bib: 7356•M•Age: 23

Austin, TX

0:00
0:00
/ mi
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Overall
#0 / 7166
Gender (Male)
#0 / 5052
M20-29
#0 / 648
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
2M
23:30
Rank: #6645
Start → 2M
23:30 | 11:45/mi
4M
46:11
Rank: #6304 (+341)
2M → 4M
22:41 | 11:21/mi
6M
1:08:55
Rank: #6107 (+197)
4M → 6M
22:44 | 11:22/mi
8M
1:30:40
Rank: #5987 (+120)
6M → 8M
21:45 | 10:52/mi
9.6M
1:50:03
Rank: #5896 (+91)
8M → 9.6M
19:23 | 12:07/mi
10M
1:53:13
Rank: #5886 (+10)
9.6M → 10M
3:10 | 7:56/mi
10.5M
2:00:48
Rank: #5825 (+61)
10M → 10.5M
7:35 | 15:10/mi
12M
2:17:58
Rank: #5788 (+37)
10.5M → 12M
17:10 | 11:27/mi
14M
2:47:14
Rank: #6056 (-268)
12M → 14M
29:16 | 14:38/mi
16M
3:08:54
Rank: #5996 (+60)
14M → 16M
21:40 | 10:50/mi
18M
3:46:25
Rank: #6428 (-432)
16M → 18M
37:31 | 18:46/mi
20M
4:17:55
Rank: #6542 (-114)
18M → 20M
31:30 | 15:45/mi
22M
4:46:02
Rank: #6558 (-16)
20M → 22M
28:07 | 14:03/mi
24M
5:14:51
Rank: #6509 (+49)
22M → 24M
28:49 | 14:25/mi
Finish· 26.22 mi
5:41:11
Rank: #6331 (+178)
24M → Finish
26:20 | 11:52/mi

Course Map & Elevation

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Half Splits

1st Half· via 14MFaster
Distance14.00 mi
Time2:47:14
Pace11:57 /mi
2nd Half
Distance12.22 mi
Time2:53:57
Pace14:14 /mi
📊Positive Split: 4.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi06:02:5723:3011:4523:30
11:45
-
4M
4.00 mi06:25:3846:1111:3322:41
11:21
-0:24
6M
6.00 mi06:48:221:08:5511:2922:44
11:22
+0:01
8M
8.00 mi07:10:071:30:4011:2021:45
10:52
-0:30
9.6M
9.60 mi07:29:301:50:0311:2819:23
12:07
+1:15
10M
10.00 mi07:32:401:53:1311:193:10
7:56
-4:11
10.5M
10.50 mi07:40:152:00:4811:307:35
15:10
+7:14
12M
12.00 mi07:57:252:17:5811:3017:10
11:27
-3:43
14M
14.00 mi08:26:412:47:1411:5729:16
14:38
+3:11
16M
16.00 mi08:48:213:08:5411:4821:40
10:50
-3:48
18M
18.00 mi09:25:523:46:2512:3537:31
18:46
+7:56
20M
20.00 mi09:57:224:17:5512:5431:30
15:45
-3:01
22M
22.00 mi10:25:294:46:0213:0028:07
14:03
-1:42
24M
24.00 mi10:54:185:14:5113:0728:49
14:25
+0:22
Finish
26.22 mi11:20:385:41:1113:0126:20
11:52
-2:33

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

7:56 /mi

Average Pace

13:01 /mi

Slowest Pace

18:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

3:10

1% of race

Time at Steady Pace

2:55:13

51% of race

Time at Slower Pace

2:42:48

48% of race

Average Pace: 13:01 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
2M
2.00 mi06:02:5723:3011:4523:30
11:45
#6645
4M
4.00 mi06:25:3846:1111:3322:41
11:21
#6304
6M
6.00 mi06:48:221:08:5511:2922:44
11:22
#6107
8M
8.00 mi07:10:071:30:4011:2021:45
10:52
#5987
9.6M
9.60 mi07:29:301:50:0311:2819:23
12:07
#5896
10M
10.00 mi07:32:401:53:1311:193:10
7:56
#5886
10.5M
10.50 mi07:40:152:00:4811:307:35
15:10
#5825
12M
12.00 mi07:57:252:17:5811:3017:10
11:27
#5788
14M
14.00 mi08:26:412:47:1411:5729:16
14:38
#6056
16M
16.00 mi08:48:213:08:5411:4821:40
10:50
#5996
18M
18.00 mi09:25:523:46:2512:3537:31
18:46
#6428
20M
20.00 mi09:57:224:17:5512:5431:30
15:45
#6542
22M
22.00 mi10:25:294:46:0213:0028:07
14:03
#6558
24M
24.00 mi10:54:185:14:5113:0728:49
14:25
#6509
Finish
26.22 mi11:20:385:41:1113:0126:20
11:52
#6331
Faster pace
Steady pace
Slower pace
Garmin Challenge
Featured Segment

Garmin Challenge

The climb, presented by Garmin

Top 74%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

10:45

Segment Time

11:57/mi

Pace

0.90 mi

Distance

Overall

5308

Men

3935

Division

539

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM20-29Seg. OverallSeg. MalesSeg. M20-29
2M2.00 mi2.00 mi664547706175617(Top 78%)4143(Top 82%)566(Top 87%)
4M4.00 mi2.00 mi6304+3414568+202603+145987(Top 84%)4384(Top 87%)587(Top 91%)
6M6.00 mi2.00 mi6107+1974457+111593+105800(Top 81%)4266(Top 84%)570(Top 88%)
8M8.00 mi2.00 mi5987+1204384+73585+85558(Top 78%)4131(Top 82%)558(Top 86%)
9.6M9.60 mi1.60 mi5896+914328+56579+65672(Top 79%)4176(Top 83%)556(Top 86%)
10M10.00 mi0.40 mi5886+104320+8578+15716(Top 80%)4204(Top 83%)568(Top 88%)
10.5M10.50 mi0.50 mi5825+614282+38570+85281(Top 74%)3913(Top 77%)529(Top 82%)
12M12.00 mi1.50 mi5788+374262+20574-45617(Top 78%)4143(Top 82%)566(Top 87%)
14M14.00 mi2.00 mi6056-2684423-161598-246739(Top 94%)4799(Top 95%)615(Top 95%)
16M16.00 mi2.00 mi5996+604379+44588+105383(Top 75%)3957(Top 78%)513(Top 79%)
18M18.00 mi2.00 mi6428-4324633-254608-207114(Top 99%)5023(Top 99%)643(Top 99%)
20M20.00 mi2.00 mi6542-1144693-60611-36873(Top 96%)4853(Top 96%)612(Top 94%)
22M22.00 mi2.00 mi6558-164696-3609+26547(Top 91%)4626(Top 92%)598(Top 92%)
24M24.00 mi2.00 mi6509+494654+42608+15886(Top 82%)4170(Top 83%)544(Top 84%)
Finish26.22 mi2.22 mi6331+1784541+113599+94436(Top 62%)3205(Top 63%)434(Top 67%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 78%
×1human
+6ft-11ft

Overall

5617

Males

4143

M20-24

572

2M→4M

2.0 - 4.0 mi

Top 84%
×4stories
+75ft-70ft

Overall

5987

Males

4384

M20-24

597

4M→6M

4.0 - 6.0 mi

Top 81%
×5stories
+71ft-18ft

Overall

5800

Males

4266

M20-24

580

6M→8M

6.0 - 8.0 mi

Top 78%
×9stories
+106ft-21ft

Overall

5558

Males

4131

M20-24

567

8M→9.6M

8.0 - 9.6 mi

Top 79%
×13stories
+117ft-177ft

Overall

5672

Males

4176

M20-24

565

9.6M→10M

9.6 - 10.0 mi

Top 80%
×1story
+17ft-12ft

Overall

5716

Males

4204

M20-24

576

10M→10.5M

10.0 - 10.5 mi

Top 74%
×9stories
+0ft-102ft

Overall

5281

Males

3913

M20-24

536

10.5M→12M

10.5 - 12.0 mi

Top 78%
×18stories
+304ft-125ft

Overall

5617

Males

4143

M20-24

572

12M→14M

12.0 - 14.0 mi

Top 94%
×9stories
+99ft-125ft

Overall

6739

Males

4799

M20-24

618

14M→16M

14.0 - 16.0 mi

Top 75%
×9stories
+124ft-78ft

Overall

5383

Males

3957

M20-24

515

16M→18M

16.0 - 18.0 mi

Top 99%
×8stories
+106ft-45ft

Overall

7114

Males

5023

M20-24

646

18M→20M

18.0 - 20.0 mi

Top 96%
×3stories
+52ft-26ft

Overall

6873

Males

4853

M20-24

613

20M→22M

20.0 - 22.0 mi

Top 91%
×21stories
+17ft-266ft

Overall

6547

Males

4626

M20-24

599

22M→24M

22.0 - 24.0 mi

Top 82%
×3stories
+70ft-85ft

Overall

5886

Males

4170

M20-24

545

24M→Finish

24.0 - 26.2 mi

Top 62%
~flat
+2ft-2ft

Overall

4436

Males

3205

M20-24

434

Passing Analysis

Category:
Athletes Passed
1452*
Passed By
1138
Net Change
+314
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#6645
2M → 4M359*18+341#6645#6304
4M → 6M226*29+197#6304#6107
6M → 8M140*20+120#6107#5987
8M → 9.6M130*39+91#5987#5896
9.6M → 10M2010+10#5896#5886
10M → 10.5M7312+61#5886#5825
10.5M → 12M7841+37#5825#5788
12M → 14M18*286-268#5788#6056
14M → 16M121*61+60#6056#5996
16M → 18M4*436-432#5996#6428
18M → 20M11*125-114#6428#6542
20M → 22M30*46-16#6542#6558
22M → 24M63*14+49#6558#6509
24M → Finish179*1+178#6509#6331
TOTALS1452*1138+314

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

📊

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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