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SF MARATHON 2026

Isaac Boss

Bib: 5469•M•Age: 23

Lexington, KY

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

Start
0:00:00
Race begins
2M
21:06
Rank: #5203
Start → 2M
21:06 | 10:33/mi
4M
42:16
Rank: #5054 (+149)
2M → 4M
21:10 | 10:35/mi
6M
1:04:06
Rank: #5059 (-5)
4M → 6M
21:50 | 10:55/mi
8M
1:25:31
Rank: #5095 (-36)
6M → 8M
21:25 | 10:42/mi
9.6M
1:42:47
Rank: #4872 (+223)
8M → 9.6M
17:16 | 10:47/mi
10M
1:46:13
Rank: #4933 (-61)
9.6M → 10M
3:26 | 8:36/mi
10.5M
1:54:05
Rank: #4978 (-45)
10M → 10.5M
7:52 | 15:44/mi
12M
2:10:14
Rank: #4980 (-2)
10.5M → 12M
16:09 | 10:46/mi
14M
2:33:21
Rank: #4903 (+77)
12M → 14M
23:07 | 11:33/mi
16M
2:52:12
Rank: #4742 (+161)
14M → 16M
18:51 | 9:25/mi
18M
3:23:06
Rank: #5179 (-437)
16M → 18M
30:54 | 15:27/mi
20M
3:52:12
Rank: #5459 (-280)
18M → 20M
29:06 | 14:33/mi
22M
4:17:21
Rank: #5519 (-60)
20M → 22M
25:09 | 12:34/mi
24M
4:45:53
Rank: #5562 (-43)
22M → 24M
28:32 | 14:16/mi
Finish· 26.22 mi
5:15:58
Rank: #5573 (-11)
24M → Finish
30:05 | 13:33/mi

The Course

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Half Splits

1st Half· via 14MFaster
Distance14.00 mi
Time2:33:21
Pace10:57 /mi
2nd Half
Distance12.22 mi
Time2:42:37
Pace13:19 /mi
📊Positive Split: 6.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi05:52:4221:0610:3321:06
10:33
-
4M
4.00 mi06:13:5242:1610:3421:10
10:35
+0:02
6M
6.00 mi06:35:421:04:0610:4121:50
10:55
+0:20
8M
8.00 mi06:57:071:25:3110:4121:25
10:42
-0:13
9.6M
9.60 mi07:14:231:42:4710:4217:16
10:47
+0:05
10M
10.00 mi07:17:491:46:1310:373:26
8:36
-2:11
10.5M
10.50 mi07:25:411:54:0510:527:52
15:44
+7:08
12M
12.00 mi07:41:502:10:1410:5116:09
10:46
-4:58
14M
14.00 mi08:04:572:33:2110:5723:07
11:33
+0:47
16M
16.00 mi08:23:482:52:1210:4618:51
9:25
-2:08
18M
18.00 mi08:54:423:23:0611:1730:54
15:27
+6:02
20M
20.00 mi09:23:483:52:1211:3729:06
14:33
-0:54
22M
22.00 mi09:48:574:17:2111:4225:09
12:34
-1:59
24M
24.00 mi10:17:294:45:5311:5528:32
14:16
+1:42
Finish
26.22 mi10:47:345:15:5812:0430:05
13:33
-0:43

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

8:36 /mi

Average Pace

12:04 /mi

Slowest Pace

15:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

22:17

7% of race

Time at Steady Pace

2:22:03

45% of race

Time at Slower Pace

2:31:38

48% of race

Average Pace: 12:03 /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 mi05:52:4221:0610:3321:06
10:33
#5203
4M
4.00 mi06:13:5242:1610:3421:10
10:35
#5054
6M
6.00 mi06:35:421:04:0610:4121:50
10:55
#5059
8M
8.00 mi06:57:071:25:3110:4121:25
10:42
#5095
9.6M
9.60 mi07:14:231:42:4710:4217:16
10:47
#4872
10M
10.00 mi07:17:491:46:1310:373:26
8:36
#4933
10.5M
10.50 mi07:25:411:54:0510:527:52
15:44
#4978
12M
12.00 mi07:41:502:10:1410:5116:09
10:46
#4980
14M
14.00 mi08:04:572:33:2110:5723:07
11:33
#4903
16M
16.00 mi08:23:482:52:1210:4618:51
9:25
#4742
18M
18.00 mi08:54:423:23:0611:1730:54
15:27
#5179
20M
20.00 mi09:23:483:52:1211:3729:06
14:33
#5459
22M
22.00 mi09:48:574:17:2111:4225:09
12:34
#5519
24M
24.00 mi10:17:294:45:5311:5528:32
14:16
#5562
Finish
26.22 mi10:47:345:15:5812:0430:05
13:33
#5573
Faster pace
Steady pace
Slower pace
Garmin Challenge
Featured Segment

Garmin Challenge

The climb, presented by Garmin

Top 81%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

11:18

Segment Time

12:34/mi

Pace

0.90 mi

Distance

Overall

5793

Men

4234

Division

560

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM20-29Seg. OverallSeg. MalesSeg. M20-29
2M2.00 mi2.00 mi520338985394929(Top 69%)3711(Top 73%)524(Top 81%)
4M4.00 mi2.00 mi5054+1493818+80531+84992(Top 70%)3782(Top 75%)519(Top 80%)
6M6.00 mi2.00 mi5059-53828-10530+15213(Top 73%)3914(Top 77%)539(Top 83%)
8M8.00 mi2.00 mi5095-363854-26532-25310(Top 74%)3985(Top 79%)551(Top 85%)
9.6M9.60 mi1.60 mi4872+2233709+145521+114163(Top 58%)3242(Top 64%)456(Top 70%)
10M10.00 mi0.40 mi4933-613742-33522-16354(Top 89%)4594(Top 91%)596(Top 92%)
10.5M10.50 mi0.50 mi4978-453775-33524-25690(Top 79%)4163(Top 82%)553(Top 85%)
12M12.00 mi1.50 mi4980-23768+75244929(Top 69%)3711(Top 73%)524(Top 81%)
14M14.00 mi2.00 mi4903+773706+62518+64642(Top 65%)3527(Top 70%)493(Top 76%)
16M16.00 mi2.00 mi4742+1613606+100500+184008(Top 56%)3064(Top 61%)417(Top 64%)
18M18.00 mi2.00 mi5179-4373858-252531-316637(Top 93%)4707(Top 93%)604(Top 93%)
20M20.00 mi2.00 mi5459-2804031-173547-166579(Top 92%)4650(Top 92%)598(Top 92%)
22M22.00 mi2.00 mi5519-604056-25549-25724(Top 80%)4062(Top 80%)545(Top 84%)
24M24.00 mi2.00 mi5562-434076-20554-55784(Top 81%)4104(Top 81%)534(Top 82%)
Finish26.22 mi2.22 mi5573-114074+2551+35785(Top 81%)4099(Top 81%)547(Top 84%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 69%
×1human
+6ft-11ft

Overall

4929

Males

3711

M20-24

528

2M→4M

2.0 - 4.0 mi

Top 70%
×4stories
+75ft-70ft

Overall

4992

Males

3782

M20-24

528

4M→6M

4.0 - 6.0 mi

Top 73%
×5stories
+71ft-18ft

Overall

5213

Males

3914

M20-24

549

6M→8M

6.0 - 8.0 mi

Top 74%
×9stories
+106ft-21ft

Overall

5310

Males

3985

M20-24

560

8M→9.6M

8.0 - 9.6 mi

Top 58%
×13stories
+117ft-177ft

Overall

4163

Males

3242

M20-24

463

9.6M→10M

9.6 - 10.0 mi

Top 89%
×1story
+17ft-12ft

Overall

6354

Males

4594

M20-24

605

10M→10.5M

10.0 - 10.5 mi

Top 79%
×9stories
+0ft-102ft

Overall

5690

Males

4163

M20-24

560

10.5M→12M

10.5 - 12.0 mi

Top 69%
×18stories
+304ft-125ft

Overall

4929

Males

3711

M20-24

528

12M→14M

12.0 - 14.0 mi

Top 65%
×9stories
+99ft-125ft

Overall

4642

Males

3527

M20-24

495

14M→16M

14.0 - 16.0 mi

Top 56%
×9stories
+124ft-78ft

Overall

4008

Males

3064

M20-24

418

16M→18M

16.0 - 18.0 mi

Top 93%
×8stories
+106ft-45ft

Overall

6637

Males

4707

M20-24

606

18M→20M

18.0 - 20.0 mi

Top 92%
×3stories
+52ft-26ft

Overall

6579

Males

4650

M20-24

599

20M→22M

20.0 - 22.0 mi

Top 80%
×21stories
+17ft-266ft

Overall

5724

Males

4062

M20-24

546

22M→24M

22.0 - 24.0 mi

Top 81%
×3stories
+70ft-85ft

Overall

5784

Males

4104

M20-24

535

24M→Finish

24.0 - 26.2 mi

Top 81%
~flat
+2ft-2ft

Overall

5785

Males

4099

M20-24

547

Passing Analysis

Category:
Athletes Passed
1208*
Passed By
1578
Net Change
-370
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#5203
2M → 4M231*82+149#5203#5054
4M → 6M124129-5#5054#5059
6M → 8M71*107-36#5059#5095
8M → 9.6M230*7+223#5095#4872
9.6M → 10M566-61#4872#4933
10M → 10.5M4186-45#4933#4978
10.5M → 12M7274-2#4978#4980
12M → 14M103*26+77#4980#4903
14M → 16M196*35+161#4903#4742
16M → 18M11448-437#4742#5179
18M → 20M12*292-280#5179#5459
20M → 22M29*89-60#5459#5519
22M → 24M38*81-43#5519#5562
24M → Finish45*56-11#5562#5573
TOTALS1208*1578-370

* 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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