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SF MARATHON 2026

Britton Forker

Bib: 4629•F•Age: 30

Chicago, IL

0:00
0:00
/ mi
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Overall
#0 / 7166
Top 25%
Gender (Female)
#0 / 2086
Top 15%
Division (F30-34)
#0 / 395
Top 13%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
2M
18:03
Rank: #2342
Start → 2M
18:03 | 9:01/mi
4M
36:09
Rank: #2321 (+21)
2M → 4M
18:06 | 9:03/mi
6M
53:45
Rank: #2101 (+220)
4M → 6M
17:36 | 8:48/mi
8M
1:11:06
Rank: #2016 (+85)
6M → 8M
17:21 | 8:40/mi
9.6M
1:25:58
Rank: #2012 (+4)
8M → 9.6M
14:52 | 9:17/mi
10M
1:28:25
Rank: #2010 (+2)
9.6M → 10M
2:27 | 6:08/mi
10.5M
1:34:20
Rank: #1999 (+11)
10M → 10.5M
5:55 | 11:50/mi
12M
1:46:38
Rank: #1922 (+77)
10.5M → 12M
12:18 | 8:12/mi
14M
2:05:08
Rank: #1856 (+66)
12M → 14M
18:30 | 9:15/mi
16M
2:18:52
Rank: #1607 (+249)
14M → 16M
13:44 | 6:52/mi
18M
2:38:51
Rank: #1666 (-59)
16M → 18M
19:59 | 10:00/mi
20M
2:58:48
Rank: #1756 (-90)
18M → 20M
19:57 | 9:58/mi
22M
3:17:12
Rank: #1797 (-41)
20M → 22M
18:24 | 9:12/mi
24M
3:37:26
Rank: #1767 (+30)
22M → 24M
20:14 | 10:07/mi
Finish· 26.22 mi
3:59:18
Rank: #1793 (-26)
24M → Finish
21:52 | 9:51/mi

The Course

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Half Splits

1st Half· via 14M
Distance14.00 mi
Time2:05:08
Pace8:56 /mi
2nd Half✓ Faster
Distance12.22 mi
Time1:54:10
Pace9:21 /mi
📊Negative Split: 8.8% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi05:40:3518:039:0118:03
9:01
-
4M
4.00 mi05:58:4136:099:0218:06
9:03
+0:02
6M
6.00 mi06:16:1753:458:5817:36
8:48
-0:15
8M
8.00 mi06:33:381:11:068:5317:21
8:40
-0:08
9.6M
9.60 mi06:48:301:25:588:5714:52
9:17
+0:37
10M
10.00 mi06:50:571:28:258:512:27
6:08
-3:09
10.5M
10.50 mi06:56:521:34:208:595:55
11:50
+5:42
12M
12.00 mi07:09:101:46:388:5312:18
8:12
-3:38
14M
14.00 mi07:27:402:05:088:5618:30
9:15
+1:03
16M
16.00 mi07:41:242:18:528:4113:44
6:52
-2:23
18M
18.00 mi08:01:232:38:518:5019:59
10:00
+3:08
20M
20.00 mi08:21:202:58:488:5619:57
9:58
-0:02
22M
22.00 mi08:39:443:17:128:5818:24
9:12
-0:46
24M
24.00 mi08:59:583:37:269:0420:14
10:07
+0:55
Finish
26.22 mi09:21:503:59:189:0821:52
9:51
-0:16

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

6:08 /mi

Average Pace

9:08 /mi

Slowest Pace

11:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

28:29

12% of race

Time at Steady Pace

2:24:44

60% of race

Time at Slower Pace

1:06:05

28% of race

Average Pace: 9:08 /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 mi05:40:3518:039:0118:03
9:01
#2342
4M
4.00 mi05:58:4136:099:0218:06
9:03
#2321
6M
6.00 mi06:16:1753:458:5817:36
8:48
#2101
8M
8.00 mi06:33:381:11:068:5317:21
8:40
#2016
9.6M
9.60 mi06:48:301:25:588:5714:52
9:17
#2012
10M
10.00 mi06:50:571:28:258:512:27
6:08
#2010
10.5M
10.50 mi06:56:521:34:208:595:55
11:50
#1999
12M
12.00 mi07:09:101:46:388:5312:18
8:12
#1922
14M
14.00 mi07:27:402:05:088:5618:30
9:15
#1856
16M
16.00 mi07:41:242:18:528:4113:44
6:52
#1607
18M
18.00 mi08:01:232:38:518:5019:59
10:00
#1666
20M
20.00 mi08:21:202:58:488:5619:57
9:58
#1756
22M
22.00 mi08:39:443:17:128:5818:24
9:12
#1797
24M
24.00 mi08:59:583:37:269:0420:14
10:07
#1767
Finish
26.22 mi09:21:503:59:189:0821:52
9:51
#1793
Faster pace
Steady pace
Slower pace
Garmin Challenge
Featured Segment

Garmin Challenge

The climb, presented by Garmin

Top 27%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

8:22

Segment Time

9:18/mi

Pace

0.90 mi

Distance

Overall

1931

Women

271

Division

45

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF30-34Seg. OverallSeg. FemalesSeg. F30-34
2M2.00 mi2.00 mi2342373591594(Top 22%)231(Top 11%)40(Top 10%)
4M4.00 mi2.00 mi2321+2137360-12286(Top 32%)362(Top 17%)61(Top 15%)
6M6.00 mi2.00 mi2101+220311+6253+71823(Top 25%)256(Top 12%)39(Top 10%)
8M8.00 mi2.00 mi2016+85295+1650+31873(Top 26%)272(Top 13%)45(Top 11%)
9.6M9.60 mi1.60 mi2012+4291+449+12128(Top 30%)305(Top 15%)47(Top 12%)
10M10.00 mi0.40 mi2010+2293-2491973(Top 28%)291(Top 14%)45(Top 11%)
10.5M10.50 mi0.50 mi1999+11288+547+22065(Top 29%)307(Top 15%)48(Top 12%)
12M12.00 mi1.50 mi1922+77275+1344+31594(Top 22%)231(Top 11%)40(Top 10%)
14M14.00 mi2.00 mi1856+66266+943+11524(Top 21%)198(Top 9%)32(Top 8%)
16M16.00 mi2.00 mi1607+249226+4036+7791(Top 11%)97(Top 5%)18(Top 5%)
18M18.00 mi2.00 mi1666-59235-937-12236(Top 31%)399(Top 19%)63(Top 16%)
20M20.00 mi2.00 mi1756-90260-2542-52566(Top 36%)518(Top 25%)81(Top 21%)
22M22.00 mi2.00 mi1797-41278-1845-32228(Top 31%)460(Top 22%)81(Top 21%)
24M24.00 mi2.00 mi1767+30289-1147-21918(Top 27%)415(Top 20%)66(Top 17%)
Finish26.22 mi2.22 mi1793-26306-1750-32116(Top 30%)461(Top 22%)79(Top 20%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 22%
×1human
+6ft-11ft

Overall

1594

Females

231

F30-34

42

2M→4M

2.0 - 4.0 mi

Top 32%
×4stories
+75ft-70ft

Overall

2286

Females

362

F30-34

64

4M→6M

4.0 - 6.0 mi

Top 25%
×5stories
+71ft-18ft

Overall

1823

Females

256

F30-34

42

6M→8M

6.0 - 8.0 mi

Top 26%
×9stories
+106ft-21ft

Overall

1873

Females

272

F30-34

47

8M→9.6M

8.0 - 9.6 mi

Top 30%
×13stories
+117ft-177ft

Overall

2128

Females

305

F30-34

49

9.6M→10M

9.6 - 10.0 mi

Top 28%
×1story
+17ft-12ft

Overall

1973

Females

291

F30-34

47

10M→10.5M

10.0 - 10.5 mi

Top 29%
×9stories
+0ft-102ft

Overall

2065

Females

307

F30-34

50

10.5M→12M

10.5 - 12.0 mi

Top 22%
×18stories
+304ft-125ft

Overall

1594

Females

231

F30-34

42

12M→14M

12.0 - 14.0 mi

Top 21%
×9stories
+99ft-125ft

Overall

1524

Females

198

F30-34

34

14M→16M

14.0 - 16.0 mi

Top 11%
×9stories
+124ft-78ft

Overall

791

Females

97

F30-34

20

16M→18M

16.0 - 18.0 mi

Top 31%
×8stories
+106ft-45ft

Overall

2236

Females

399

F30-34

65

18M→20M

18.0 - 20.0 mi

Top 36%
×3stories
+52ft-26ft

Overall

2566

Females

518

F30-34

84

20M→22M

20.0 - 22.0 mi

Top 31%
×21stories
+17ft-266ft

Overall

2228

Females

460

F30-34

82

22M→24M

22.0 - 24.0 mi

Top 27%
×3stories
+70ft-85ft

Overall

1918

Females

415

F30-34

68

24M→Finish

24.0 - 26.2 mi

Top 30%
~flat
+2ft-2ft

Overall

2116

Females

461

F30-34

79

Passing Analysis

Category:
Athletes Passed
1209*
Passed By
660
Net Change
+549
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#2342
2M → 4M125104+21#2342#2321
4M → 6M2288+220#2321#2101
6M → 8M106*21+85#2101#2016
8M → 9.6M5248+4#2016#2012
9.6M → 10M1210+2#2012#2010
10M → 10.5M3322+11#2010#1999
10.5M → 12M869+77#1999#1922
12M → 14M74*8+66#1922#1856
14M → 16M250*1+249#1856#1607
16M → 18M62121-59#1607#1666
18M → 20M34*124-90#1666#1756
20M → 22M42*83-41#1756#1797
22M → 24M69*39+30#1797#1767
24M → Finish36*62-26#1767#1793
TOTALS1209*660+549

* 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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