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BOSTON MARATHON 2025

Sydney Burckhardt

Bib: 14682•F

CO

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 26%
Gender (Female)
#0 / 12228
Top 9%
Division (F18-39)
#0 / 5469
Top 17%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:15/mi
22:33
↑ 97↓ 3451.5%
10K· 6.21 mi
7:12/mi
44:56
↑ 79↓ 1380.4%
15K· 9.32 mi
7:06/mi
1:06:59
↑ 67↓ 78
20K· 12.43 mi
7:11/mi
1:29:18
↑ 106↓ 860.1%
Half· 13.11 mi
7:08/mi
1:34:10
↑ 19↓ 370.5%
25K· 15.53 mi
7:13/mi
1:51:41
↑ 66↓ 880.2%
30K· 18.64 mi
7:23/mi
2:14:36
↑ 181↓ 1480.2%
20M
7:24/mi
2:24:39
↑ 64↓ 500.2%
21M
7:50/mi
2:32:29
↑ 106↓ 241.6%
35K· 21.75 mi
7:08/mi
2:37:49
↑ 17↓ 861.7%
23M
7:29/mi
2:47:11
↑ 23↓ 630.6%
24M
7:17/mi
2:54:28
↓ 821.3%
40K· 24.85 mi
7:22/mi
3:00:46
↓ 200.3%
25.2M
8:10/mi
3:03:35
↑ 13↓ 160.2%
Finish· 26.22 mi
7:30/mi
3:11:14
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:10
Pace7:11 /mi
2nd Half
Distance13.11 mi
Time1:37:04
Pace7:24 /mi
📊Positive Split: 3.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:5922:337:1522:33
7:15
-
10K
6.21 mi11:17:2244:567:1422:23
7:12
-0:03
15K
9.32 mi11:39:251:06:597:1122:03
7:06
-0:06
20K
12.43 mi12:01:441:29:187:1122:19
7:11
+0:05
Half
13.11 mi12:06:361:34:107:114:52
7:08
-0:03
25K
15.53 mi12:24:071:51:417:1117:31
7:13
+0:05
30K
18.64 mi12:47:022:14:367:1322:55
7:23
+0:10
20M
20.00 mi12:57:052:24:397:1410:03
7:24
+0:01
21M
21.00 mi13:04:552:32:297:167:50
7:50
+0:26
35K
21.75 mi13:10:152:37:497:155:20
7:08
-0:42
23M
23.00 mi13:19:372:47:117:169:22
7:29
+0:21
24M
24.00 mi13:26:542:54:287:167:17
7:17
-0:12
40K
24.85 mi13:33:123:00:467:166:18
7:22
+0:05
25.2M
25.20 mi13:36:013:03:357:172:49
8:10
+0:48
Finish
26.22 mi13:43:403:11:147:187:39
7:30
-0:40

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

7:06 /mi

Average Pace

7:18 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:00:35

94% of race

Time at Steady Pace

10:39

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:18 /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
5K
3.11 mi10:54:5922:337:1522:33
7:15
#9977
10K
6.21 mi11:17:2244:567:1422:23
7:12
#9734
15K
9.32 mi11:39:251:06:597:1122:03
7:06
#9225
20K
12.43 mi12:01:441:29:187:1122:19
7:11
#8854
Half
13.11 mi12:06:361:34:107:114:52
7:08
#8829
25K
15.53 mi12:24:071:51:417:1117:31
7:13
#8589
30K
18.64 mi12:47:022:14:367:1322:55
7:23
#8190
20M
20.00 mi12:57:052:24:397:1410:03
7:24
#8002
21M
21.00 mi13:04:552:32:297:167:50
7:50
#7833
35K
21.75 mi13:10:152:37:497:155:20
7:08
#7729
23M
23.00 mi13:19:372:47:117:169:22
7:29
#7606
24M
24.00 mi13:26:542:54:287:167:17
7:17
#7489
40K
24.85 mi13:33:123:00:467:166:18
7:22
#7380
25.2M
25.20 mi13:36:013:03:357:172:49
8:10
#7352
Finish
26.22 mi13:43:403:11:147:187:39
7:30
#7397
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9977179317938333(Top 29%)1174(Top 10%)1174(Top 21%)
10K6.21 mi3.10 mi9734+2431688+1051688+1059534(Top 34%)1610(Top 13%)1610(Top 29%)
15K9.32 mi3.11 mi9225+5091489+1991489+1998333(Top 29%)1174(Top 10%)1174(Top 21%)
20K12.43 mi3.11 mi8854+3711355+1341355+1348066(Top 28%)1132(Top 9%)1132(Top 21%)
Half13.11 mi0.68 mi8829+251352+31352+38595(Top 30%)1316(Top 11%)1316(Top 24%)
25K15.53 mi2.42 mi8589+2401272+801272+807794(Top 27%)1140(Top 9%)1140(Top 21%)
30K18.64 mi3.11 mi8190+3991185+871185+876924(Top 24%)984(Top 8%)984(Top 18%)
20M20.00 mi1.36 mi8002+1881147+381147+386383(Top 22%)923(Top 8%)923(Top 17%)
21M21.00 mi1.00 mi7833+1691112+351112+356413(Top 23%)1066(Top 9%)1066(Top 19%)
35K21.75 mi0.75 mi7729+1041095+171095+176200(Top 22%)990(Top 8%)990(Top 18%)
23M23.00 mi1.25 mi7606+1231099-41099-46539(Top 23%)1204(Top 10%)1204(Top 22%)
24M24.00 mi1.00 mi7489+1171091+81091+86341(Top 22%)1199(Top 10%)1199(Top 22%)
40K24.85 mi0.85 mi7380+1091078+131078+136046(Top 21%)1154(Top 9%)1154(Top 21%)
25.2M25.20 mi0.35 mi7352+281084-61084-66908(Top 24%)1580(Top 13%)1580(Top 29%)
Finish26.22 mi1.02 mi7397-451134-501134-509245(Top 33%)2632(Top 22%)2632(Top 48%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21story building
+97ft-345ft

Overall

8333

Females

1174

F18-39

1174

5K→10K

3.1 - 6.2 mi

Top 34%
×5story building
+79ft-138ft

Overall

9534

Females

1610

F18-39

1610

10K→15K

6.2 - 9.3 mi

Top 29%
×3story building
+67ft-78ft

Overall

8333

Females

1174

F18-39

1174

15K→20K

9.3 - 12.4 mi

Top 28%
×5story building
+106ft-86ft

Overall

8066

Females

1132

F18-39

1132

20K→Half

12.4 - 13.1 mi

Top 30%
×2story building
+19ft-37ft

Overall

8595

Females

1316

F18-39

1316

Half→25K

13.1 - 15.5 mi

Top 27%
×4story building
+66ft-88ft

Overall

7794

Females

1140

F18-39

1140

25K→30K

15.5 - 18.6 mi

Top 24%
×9story building
+181ft-148ft

Overall

6924

Females

984

F18-39

984

30K→20M

18.6 - 20.0 mi

Top 22%
×5story building
+64ft-50ft

Overall

6383

Females

923

F18-39

923

20M→21M

20.0 - 21.0 mi

Top 23%
×8story building
+106ft-24ft

Overall

6413

Females

1066

F18-39

1066

21M→35K

21.0 - 21.8 mi

Top 22%
×7story building
+17ft-86ft

Overall

6200

Females

990

F18-39

990

35K→23M

21.8 - 23.0 mi

Top 23%
×5story building
+23ft-63ft

Overall

6539

Females

1204

F18-39

1204

23M→24M

23.0 - 24.0 mi

Top 22%
×6story building
+12ft-82ft

Overall

6341

Females

1199

F18-39

1199

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

6046

Females

1154

F18-39

1154

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6908

Females

1580

F18-39

1580

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2story building
+22ft-21ft

Overall

9245

Females

2632

F18-39

2632

Passing Analysis

Category:
Athletes Passed
3051
Passed By
470
Net Change
+2580
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9977
5K → 10K367123+243#9977#9734
10K → 15K52011+509#9734#9225
15K → 20K39120+371#9225#8854
20K → Half4015+25#8854#8829
Half → 25K27333+240#8829#8589
25K → 30K43839+399#8589#8190
30K → 20M20719+188#8190#8002
20M → 21M18819+169#8002#7833
21M → 35K11612+104#7833#7729
35K → 23M15633+123#7729#7606
23M → 24M13518+117#7606#7489
24M → 40K12920+109#7489#7380
40K → 25.2M4618+28#7380#7352
25.2M → Finish4590-45#7352#7397
TOTALS3051470+2580
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing