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BOSTON MARATHON 2025

Gabrielle Demac

Bib: 26128•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
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
9:46/mi
30:20
↑ 97↓ 3451.5%
10K· 6.21 mi
9:44/mi
1:00:35
↑ 79↓ 1380.4%
15K· 9.32 mi
9:42/mi
1:30:43
↑ 67↓ 78
20K· 12.43 mi
10:04/mi
2:02:01
↑ 106↓ 860.1%
Half· 13.11 mi
10:13/mi
2:08:59
↑ 19↓ 370.5%
25K· 15.53 mi
10:37/mi
2:34:44
↑ 66↓ 880.2%
30K· 18.64 mi
10:52/mi
3:08:30
↑ 181↓ 1480.2%
20M
11:02/mi
3:23:29
↑ 64↓ 500.2%
21M
11:20/mi
3:34:49
↑ 106↓ 241.6%
35K· 21.75 mi
11:06/mi
3:43:07
↑ 17↓ 861.7%
23M
10:55/mi
3:56:47
↑ 23↓ 630.6%
24M
10:45/mi
4:07:32
↓ 821.3%
40K· 24.85 mi
10:33/mi
4:16:33
↓ 200.3%
25.2M
11:19/mi
4:20:27
↑ 13↓ 160.2%
Finish· 26.22 mi
9:10/mi
4:29:47
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:08:59
Pace9:50 /mi
2nd Half
Distance13.11 mi
Time2:20:48
Pace10:44 /mi
📊Positive Split: 9.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:4030:209:4630:20
9:46
-
10K
6.21 mi12:15:551:00:359:4530:15
9:44
-0:02
15K
9.32 mi12:46:031:30:439:4430:08
9:42
-0:02
20K
12.43 mi13:17:212:02:019:4931:18
10:04
+0:22
Half
13.11 mi13:24:192:08:599:506:58
10:13
+0:09
25K
15.53 mi13:50:042:34:449:5825:45
10:37
+0:24
30K
18.64 mi14:23:503:08:3010:0733:46
10:52
+0:15
20M
20.00 mi14:38:493:23:2910:1014:59
11:02
+0:10
21M
21.00 mi14:50:093:34:4910:1411:20
11:20
+0:18
35K
21.75 mi14:58:273:43:0710:168:18
11:06
-0:14
23M
23.00 mi15:12:073:56:4710:1813:40
10:55
-0:11
24M
24.00 mi15:22:524:07:3210:1910:45
10:45
-0:10
40K
24.85 mi15:31:534:16:3310:199:01
10:33
-0:12
25.2M
25.20 mi15:35:474:20:2710:203:54
11:19
+0:46
Finish
26.22 mi15:45:074:29:4710:189:20
9:10
-2:09

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

9:10 /mi

Average Pace

10:18 /mi

Slowest Pace

11:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:18:19

51% of race

Time at Steady Pace

1:32:57

34% of race

Time at Slower Pace

38:31

14% of race

Average Pace: 10:17 /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 mi11:45:4030:209:4630:20
9:46
#25004
10K
6.21 mi12:15:551:00:359:4530:15
9:44
#24862
15K
9.32 mi12:46:031:30:439:4430:08
9:42
#24662
20K
12.43 mi13:17:212:02:019:4931:18
10:04
#24582
Half
13.11 mi13:24:192:08:599:506:58
10:13
#24618
25K
15.53 mi13:50:042:34:449:5825:45
10:37
#24625
30K
18.64 mi14:23:503:08:3010:0733:46
10:52
#24482
20M
20.00 mi14:38:493:23:2910:1014:59
11:02
#24431
21M
21.00 mi14:50:093:34:4910:1411:20
11:20
#24304
35K
21.75 mi14:58:273:43:0710:168:18
11:06
#24299
23M
23.00 mi15:12:073:56:4710:1813:40
10:55
#24239
24M
24.00 mi15:22:524:07:3210:1910:45
10:45
#24202
40K
24.85 mi15:31:534:16:3310:199:01
10:33
#24139
25.2M
25.20 mi15:35:474:20:2710:203:54
11:19
#24103
Finish
26.22 mi15:45:074:29:4710:189:20
9:10
#23993
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25004102121021224290(Top 86%)9837(Top 80%)9837(Top 180%)
10K6.21 mi3.10 mi24862+14210156+5610156+5624709(Top 87%)10073(Top 82%)10073(Top 184%)
15K9.32 mi3.11 mi24662+20010046+11010046+11024290(Top 86%)9837(Top 80%)9837(Top 180%)
20K12.43 mi3.11 mi24582+8010016+3010016+3024401(Top 86%)9933(Top 81%)9933(Top 182%)
Half13.11 mi0.68 mi24618-3610032-1610032-1625282(Top 89%)10419(Top 85%)10419(Top 191%)
25K15.53 mi2.42 mi24625-710045-1310045-1324584(Top 87%)10063(Top 82%)10063(Top 184%)
30K18.64 mi3.11 mi24482+1439992+539992+5323748(Top 84%)9727(Top 80%)9727(Top 178%)
20M20.00 mi1.36 mi24431+519976+169976+1623650(Top 83%)9766(Top 80%)9766(Top 179%)
21M21.00 mi1.00 mi24304+1279933+439933+4322250(Top 78%)9111(Top 75%)9111(Top 167%)
35K21.75 mi0.75 mi24299+59940-79940-724428(Top 86%)10293(Top 84%)10293(Top 188%)
23M23.00 mi1.25 mi24239+609925+159925+1523046(Top 81%)9629(Top 79%)9629(Top 176%)
24M24.00 mi1.00 mi24202+379921+49921+423462(Top 83%)9866(Top 81%)9866(Top 180%)
40K24.85 mi0.85 mi24139+639901+209901+2022064(Top 78%)9236(Top 76%)9236(Top 169%)
25.2M25.20 mi0.35 mi24103+369889+129889+1221606(Top 76%)8975(Top 73%)8975(Top 164%)
Finish26.22 mi1.02 mi23993+1109838+519838+5119809(Top 70%)8048(Top 66%)8048(Top 147%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21story building
+97ft-345ft

Overall

24290

Females

9837

F18-39

9837

5K→10K

3.1 - 6.2 mi

Top 87%
×5story building
+79ft-138ft

Overall

24709

Females

10073

F18-39

10073

10K→15K

6.2 - 9.3 mi

Top 86%
×3story building
+67ft-78ft

Overall

24290

Females

9837

F18-39

9837

15K→20K

9.3 - 12.4 mi

Top 86%
×5story building
+106ft-86ft

Overall

24401

Females

9933

F18-39

9933

20K→Half

12.4 - 13.1 mi

Top 89%
×2story building
+19ft-37ft

Overall

25282

Females

10419

F18-39

10419

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

24584

Females

10063

F18-39

10063

25K→30K

15.5 - 18.6 mi

Top 84%
×9story building
+181ft-148ft

Overall

23748

Females

9727

F18-39

9727

30K→20M

18.6 - 20.0 mi

Top 83%
×5story building
+64ft-50ft

Overall

23650

Females

9766

F18-39

9766

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

22250

Females

9111

F18-39

9111

21M→35K

21.0 - 21.8 mi

Top 86%
×7story building
+17ft-86ft

Overall

24428

Females

10293

F18-39

10293

35K→23M

21.8 - 23.0 mi

Top 81%
×5story building
+23ft-63ft

Overall

23046

Females

9629

F18-39

9629

23M→24M

23.0 - 24.0 mi

Top 83%
×6story building
+12ft-82ft

Overall

23462

Females

9866

F18-39

9866

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22064

Females

9236

F18-39

9236

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

21606

Females

8975

F18-39

8975

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2story building
+22ft-21ft

Overall

19809

Females

8048

F18-39

8048

Passing Analysis

Category:
Athletes Passed
1659
Passed By
648
Net Change
+1011
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25004
5K → 10K274132+142#25004#24862
10K → 15K24747+200#24862#24662
15K → 20K17595+80#24662#24582
20K → Half1450-36#24582#24618
Half → 25K100107-7#24618#24625
25K → 30K20764+143#24625#24482
30K → 20M8332+51#24482#24431
20M → 21M14013+127#24431#24304
21M → 35K3732+5#24304#24299
35K → 23M9131+60#24299#24239
23M → 24M6427+37#24239#24202
24M → 40K729+63#24202#24139
40K → 25.2M404+36#24139#24103
25.2M → Finish1155+110#24103#23993
TOTALS1659648+1011
📊

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