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SF MARATHON 2026

Carl Tsai

Bib: 5420•M•Age: 29

Sunnyvale, CA

0:00
0:00
/ mi
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Overall
#0 / 7166
Top 25%
Gender (Male)
#0 / 5052
Top 29%
Division (M25-29)
#0 / 1176
Top 32%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
2M
18:37
Rank: #2934
Start → 2M
18:37 | 9:18/mi
4M
37:11
Rank: #2861 (+73)
2M → 4M
18:34 | 9:17/mi
6M
56:30
Rank: #3004 (-143)
4M → 6M
19:19 | 9:39/mi
8M
1:16:04
Rank: #3171 (-167)
6M → 8M
19:34 | 9:47/mi
9.6M
1:30:19
Rank: #2899 (+272)
8M → 9.6M
14:15 | 8:54/mi
10M
1:32:30
Rank: #2826 (+73)
9.6M → 10M
2:11 | 5:28/mi
10.5M
1:37:55
Rank: #2676 (+150)
10M → 10.5M
5:25 | 10:50/mi
12M
1:50:44
Rank: #2568 (+108)
10.5M → 12M
12:49 | 8:33/mi
14M
2:10:00
Rank: #2497 (+71)
12M → 14M
19:16 | 9:38/mi
16M
2:24:04
Rank: #2177 (+320)
14M → 16M
14:04 | 7:02/mi
18M
2:44:35
Rank: #2227 (-50)
16M → 18M
20:31 | 10:16/mi
20M
3:03:20
Rank: #2135 (+92)
18M → 20M
18:45 | 9:22/mi
22M
3:20:53
Rank: #2057 (+78)
20M → 22M
17:33 | 8:46/mi
24M
3:39:20
Rank: #1900 (+157)
22M → 24M
18:27 | 9:14/mi
Finish· 26.22 mi
3:58:52
Rank: #1756 (+144)
24M → Finish
19:32 | 8:48/mi

The Course

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Half Splits

1st Half· via 14M
Distance14.00 mi
Time2:10:00
Pace9:17 /mi
2nd Half✓ Faster
Distance12.22 mi
Time1:48:52
Pace8:55 /mi
📊Negative Split: 16.3% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi05:52:1718:379:1818:37
9:18
-
4M
4.00 mi06:10:5137:119:1818:34
9:17
-0:01
6M
6.00 mi06:30:1056:309:2519:19
9:39
+0:22
8M
8.00 mi06:49:441:16:049:3019:34
9:47
+0:08
9.6M
9.60 mi07:03:591:30:199:2414:15
8:54
-0:53
10M
10.00 mi07:06:101:32:309:152:11
5:28
-3:26
10.5M
10.50 mi07:11:351:37:559:205:25
10:50
+5:22
12M
12.00 mi07:24:241:50:449:1412:49
8:33
-2:17
14M
14.00 mi07:43:402:10:009:1719:16
9:38
+1:05
16M
16.00 mi07:57:442:24:049:0014:04
7:02
-2:36
18M
18.00 mi08:18:152:44:359:0920:31
10:16
+3:14
20M
20.00 mi08:37:003:03:209:1018:45
9:22
-0:54
22M
22.00 mi08:54:333:20:539:0817:33
8:46
-0:36
24M
24.00 mi09:13:003:39:209:0818:27
9:14
+0:28
Finish
26.22 mi09:32:323:58:529:0719:32
8:48
-0:26

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

5:28 /mi

Average Pace

9:07 /mi

Slowest Pace

10:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

29:04

12% of race

Time at Steady Pace

3:03:52

77% of race

Time at Slower Pace

25:56

11% of race

Average Pace: 9:07 /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 mi05:52:1718:379:1818:37
9:18
#2934
4M
4.00 mi06:10:5137:119:1818:34
9:17
#2861
6M
6.00 mi06:30:1056:309:2519:19
9:39
#3004
8M
8.00 mi06:49:441:16:049:3019:34
9:47
#3171
9.6M
9.60 mi07:03:591:30:199:2414:15
8:54
#2899
10M
10.00 mi07:06:101:32:309:152:11
5:28
#2826
10.5M
10.50 mi07:11:351:37:559:205:25
10:50
#2676
12M
12.00 mi07:24:241:50:449:1412:49
8:33
#2568
14M
14.00 mi07:43:402:10:009:1719:16
9:38
#2497
16M
16.00 mi07:57:442:24:049:0014:04
7:02
#2177
18M
18.00 mi08:18:152:44:359:0920:31
10:16
#2227
20M
20.00 mi08:37:003:03:209:1018:45
9:22
#2135
22M
22.00 mi08:54:333:20:539:0817:33
8:46
#2057
24M
24.00 mi09:13:003:39:209:0818:27
9:14
#1900
Finish
26.22 mi09:32:323:58:529:0719:32
8:48
#1756
Faster pace
Steady pace
Slower pace
Garmin Challenge
Featured Segment

Garmin Challenge

The climb, presented by Garmin

Top 12%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

7:36

Segment Time

8:27/mi

Pace

0.90 mi

Distance

Overall

870

Men

780

Division

195

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
2M2.00 mi2.00 mi293424045882145(Top 30%)1794(Top 36%)456(Top 39%)
4M4.00 mi2.00 mi2861+732356+48575+132841(Top 40%)2343(Top 46%)578(Top 49%)
6M6.00 mi2.00 mi3004-1432464-108611-363323(Top 46%)2710(Top 54%)664(Top 56%)
8M8.00 mi2.00 mi3171-1672590-126640-293803(Top 53%)3040(Top 60%)736(Top 63%)
9.6M9.60 mi1.60 mi2899+2722387+203589+511495(Top 21%)1303(Top 26%)325(Top 28%)
10M10.00 mi0.40 mi2826+732329+58571+18686(Top 10%)621(Top 12%)166(Top 14%)
10.5M10.50 mi0.50 mi2676+1502215+114551+201044(Top 15%)923(Top 18%)224(Top 19%)
12M12.00 mi1.50 mi2568+1082146+69539+122145(Top 30%)1794(Top 36%)456(Top 39%)
14M14.00 mi2.00 mi2497+712088+58520+192168(Top 30%)1831(Top 36%)447(Top 38%)
16M16.00 mi2.00 mi2177+3201822+266459+61969(Top 14%)837(Top 17%)219(Top 19%)
18M18.00 mi2.00 mi2227-501859-37464-52591(Top 36%)2073(Top 41%)527(Top 45%)
20M20.00 mi2.00 mi2135+921781+78445+191896(Top 26%)1557(Top 31%)387(Top 33%)
22M22.00 mi2.00 mi2057+781714+67427+181730(Top 24%)1402(Top 28%)356(Top 30%)
24M24.00 mi2.00 mi1900+1571575+139397+30990(Top 14%)810(Top 16%)215(Top 18%)
Finish26.22 mi2.22 mi1756+1441454+121372+25929(Top 13%)758(Top 15%)209(Top 18%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 30%
×1human
+6ft-11ft

Overall

2145

Males

1794

M25-29

458

2M→4M

2.0 - 4.0 mi

Top 40%
×4stories
+75ft-70ft

Overall

2841

Males

2343

M25-29

581

4M→6M

4.0 - 6.0 mi

Top 46%
×5stories
+71ft-18ft

Overall

3323

Males

2710

M25-29

667

6M→8M

6.0 - 8.0 mi

Top 53%
×9stories
+106ft-21ft

Overall

3803

Males

3040

M25-29

741

8M→9.6M

8.0 - 9.6 mi

Top 21%
×13stories
+117ft-177ft

Overall

1495

Males

1303

M25-29

327

9.6M→10M

9.6 - 10.0 mi

Top 10%
×1story
+17ft-12ft

Overall

686

Males

621

M25-29

168

10M→10.5M

10.0 - 10.5 mi

Top 15%
×9stories
+0ft-102ft

Overall

1044

Males

923

M25-29

226

10.5M→12M

10.5 - 12.0 mi

Top 30%
×18stories
+304ft-125ft

Overall

2145

Males

1794

M25-29

458

12M→14M

12.0 - 14.0 mi

Top 30%
×9stories
+99ft-125ft

Overall

2168

Males

1831

M25-29

450

14M→16M

14.0 - 16.0 mi

Top 14%
×9stories
+124ft-78ft

Overall

969

Males

837

M25-29

219

16M→18M

16.0 - 18.0 mi

Top 36%
×8stories
+106ft-45ft

Overall

2591

Males

2073

M25-29

529

18M→20M

18.0 - 20.0 mi

Top 26%
×3stories
+52ft-26ft

Overall

1896

Males

1557

M25-29

388

20M→22M

20.0 - 22.0 mi

Top 24%
×21stories
+17ft-266ft

Overall

1730

Males

1402

M25-29

356

22M→24M

22.0 - 24.0 mi

Top 14%
×3stories
+70ft-85ft

Overall

990

Males

810

M25-29

215

24M→Finish

24.0 - 26.2 mi

Top 13%
~flat
+2ft-2ft

Overall

929

Males

758

M25-29

209

Passing Analysis

Category:
Athletes Passed
1826*
Passed By
648
Net Change
+1178
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#2934
2M → 4M154*81+73#2934#2861
4M → 6M52195-143#2861#3004
6M → 8M12*179-167#3004#3171
8M → 9.6M274*2+272#3171#2899
9.6M → 10M730+73#2899#2826
10M → 10.5M1522+150#2826#2676
10.5M → 12M1179+108#2676#2568
12M → 14M87*16+71#2568#2497
14M → 16M322*2+320#2497#2177
16M → 18M65115-50#2177#2227
18M → 20M109*17+92#2227#2135
20M → 22M99*21+78#2135#2057
22M → 24M159*2+157#2057#1900
24M → Finish151*7+144#1900#1756
TOTALS1826*648+1178

* 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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