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BOSTON MARATHON 2025

Tracy Gilbert

Bib: 21598•F

CO

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 49%
Division (F45-49)
#0 / 1813
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
8:21/mi
25:57
↑ 97↓ 3451.5%
10K· 6.21 mi
8:22/mi
51:58
↑ 79↓ 1380.4%
15K· 9.32 mi
8:36/mi
1:18:40
↑ 67↓ 78
20K· 12.43 mi
8:44/mi
1:45:47
↑ 106↓ 860.1%
Half· 13.11 mi
8:36/mi
1:51:39
↑ 19↓ 370.5%
25K· 15.53 mi
8:49/mi
2:13:02
↑ 66↓ 880.2%
30K· 18.64 mi
9:16/mi
2:41:49
↑ 181↓ 1480.2%
20M
9:18/mi
2:54:27
↑ 64↓ 500.2%
21M
9:52/mi
3:04:19
↑ 106↓ 241.6%
35K· 21.75 mi
8:56/mi
3:11:00
↑ 17↓ 861.7%
23M
9:18/mi
3:22:39
↑ 23↓ 630.6%
24M
8:59/mi
3:31:38
↓ 821.3%
40K· 24.85 mi
9:11/mi
3:39:29
↓ 200.3%
25.2M
9:52/mi
3:42:53
↑ 13↓ 160.2%
Finish· 26.22 mi
8:58/mi
3:52:01
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:39
Pace8:31 /mi
2nd Half
Distance13.11 mi
Time2:00:22
Pace9:11 /mi
📊Positive Split: 7.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:0125:578:2125:57
8:21
-
10K
6.21 mi11:46:0251:588:2226:01
8:22
+0:01
15K
9.32 mi12:12:441:18:408:2626:42
8:36
+0:14
20K
12.43 mi12:39:511:45:478:3127:07
8:44
+0:08
Half
13.11 mi12:45:431:51:398:315:52
8:36
-0:08
25K
15.53 mi13:07:062:13:028:3421:23
8:49
+0:13
30K
18.64 mi13:35:532:41:498:4128:47
9:16
+0:27
20M
20.00 mi13:48:312:54:278:4312:38
9:18
+0:02
21M
21.00 mi13:58:233:04:198:479:52
9:52
+0:34
35K
21.75 mi14:05:043:11:008:476:41
8:56
-0:56
23M
23.00 mi14:16:433:22:398:4911:39
9:18
+0:22
24M
24.00 mi14:25:423:31:388:498:59
8:59
-0:19
40K
24.85 mi14:33:333:39:298:507:51
9:11
+0:12
25.2M
25.20 mi14:36:573:42:538:513:24
9:52
+0:41
Finish
26.22 mi14:46:053:52:018:519:08
8:58
-0:54

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

8:21 /mi

Average Pace

8:51 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:45:41

71% of race

Time at Steady Pace

53:04

23% of race

Time at Slower Pace

13:16

6% of race

Average Pace: 8:51 /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 mi11:20:0125:578:2125:57
8:21
#19042
10K
6.21 mi11:46:0251:588:2226:01
8:22
#19023
15K
9.32 mi12:12:441:18:408:2626:42
8:36
#19294
20K
12.43 mi12:39:511:45:478:3127:07
8:44
#19342
Half
13.11 mi12:45:431:51:398:315:52
8:36
#19373
25K
15.53 mi13:07:062:13:028:3421:23
8:49
#19284
30K
18.64 mi13:35:532:41:498:4128:47
9:16
#19231
20M
20.00 mi13:48:312:54:278:4312:38
9:18
#19137
21M
21.00 mi13:58:233:04:198:479:52
9:52
#19048
35K
21.75 mi14:05:043:11:008:476:41
8:56
#19009
23M
23.00 mi14:16:433:22:398:4911:39
9:18
#18938
24M
24.00 mi14:25:423:31:388:498:59
8:59
#18865
40K
24.85 mi14:33:333:39:298:507:51
9:11
#18799
25.2M
25.20 mi14:36:573:42:538:513:24
9:52
#18751
Finish
26.22 mi14:46:053:52:018:519:08
8:58
#18740
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi190426933693319896(Top 70%)7384(Top 60%)7384(Top 407%)
10K6.21 mi3.10 mi19023+196918+156918+1519047(Top 67%)6913(Top 57%)6913(Top 381%)
15K9.32 mi3.11 mi19294-2717053-1357053-13519896(Top 70%)7384(Top 60%)7384(Top 407%)
20K12.43 mi3.11 mi19342-487105-527105-5219560(Top 69%)7238(Top 59%)7238(Top 399%)
Half13.11 mi0.68 mi19373-317118-137118-1319836(Top 70%)7374(Top 60%)7374(Top 407%)
25K15.53 mi2.42 mi19284+897079+397079+3919034(Top 67%)6992(Top 57%)6992(Top 386%)
30K18.64 mi3.11 mi19231+537092-137092-1318966(Top 67%)7099(Top 58%)7099(Top 392%)
20M20.00 mi1.36 mi19137+947057+357057+3518295(Top 64%)6886(Top 56%)6886(Top 380%)
21M21.00 mi1.00 mi19048+897030+277030+2717791(Top 63%)6688(Top 55%)6688(Top 369%)
35K21.75 mi0.75 mi19009+397028+27028+217947(Top 63%)6873(Top 56%)6873(Top 379%)
23M23.00 mi1.25 mi18938+717013+157013+1517809(Top 63%)6897(Top 56%)6897(Top 380%)
24M24.00 mi1.00 mi18865+736996+176996+1717309(Top 61%)6657(Top 54%)6657(Top 367%)
40K24.85 mi0.85 mi18799+666991+56991+517287(Top 61%)6745(Top 55%)6745(Top 372%)
25.2M25.20 mi0.35 mi18751+486972+196972+1916459(Top 58%)6320(Top 52%)6320(Top 349%)
Finish26.22 mi1.02 mi18740+116983-116983-1118867(Top 66%)7527(Top 62%)7527(Top 415%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

19896

Females

7384

F45-49

7384

5K→10K

3.1 - 6.2 mi

Top 67%
×5story building
+79ft-138ft

Overall

19047

Females

6913

F45-49

6913

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

19896

Females

7384

F45-49

7384

15K→20K

9.3 - 12.4 mi

Top 69%
×5story building
+106ft-86ft

Overall

19560

Females

7238

F45-49

7238

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

19836

Females

7374

F45-49

7374

Half→25K

13.1 - 15.5 mi

Top 67%
×4story building
+66ft-88ft

Overall

19034

Females

6992

F45-49

6992

25K→30K

15.5 - 18.6 mi

Top 67%
×9story building
+181ft-148ft

Overall

18966

Females

7099

F45-49

7099

30K→20M

18.6 - 20.0 mi

Top 64%
×5story building
+64ft-50ft

Overall

18295

Females

6886

F45-49

6886

20M→21M

20.0 - 21.0 mi

Top 63%
×8story building
+106ft-24ft

Overall

17791

Females

6688

F45-49

6688

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

17947

Females

6873

F45-49

6873

35K→23M

21.8 - 23.0 mi

Top 63%
×5story building
+23ft-63ft

Overall

17809

Females

6897

F45-49

6897

23M→24M

23.0 - 24.0 mi

Top 61%
×6story building
+12ft-82ft

Overall

17309

Females

6657

F45-49

6657

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

17287

Females

6745

F45-49

6745

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

16459

Females

6320

F45-49

6320

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2story building
+22ft-21ft

Overall

18867

Females

7527

F45-49

7527

Passing Analysis

Category:
Athletes Passed
1856
Passed By
1554
Net Change
+302
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19042
5K → 10K266247+19#19042#19023
10K → 15K116387-271#19023#19294
15K → 20K184232-48#19294#19342
20K → Half1950-31#19342#19373
Half → 25K211122+89#19373#19284
25K → 30K246193+53#19284#19231
30K → 20M15056+94#19231#19137
20M → 21M13647+89#19137#19048
21M → 35K8041+39#19048#19009
35K → 23M12251+71#19009#18938
23M → 24M10734+73#18938#18865
24M → 40K9933+66#18865#18799
40K → 25.2M546+48#18799#18751
25.2M → Finish6655+11#18751#18740
TOTALS18561554+302
📊

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